NUMERICAL MODELING OF THERMAL PROCESSES IN COMPLICATED REGIONS WITH LARGE CHANGES IN MATERIAL CHARACTERISTICS AND PROPERTIES
|
|
- Hillary Jackson
- 6 years ago
- Views:
Transcription
1 NUMERICAL MODELING OF THERMAL PROCESSES IN COMPLICATED REGIONS WITH LARGE CHANGES IN MATERIAL CHARACTERISTICS AND PROPERTIES YOGESH JALURIA Department of Mechanical and Aerospace Engineering Rutgers, the State University of New Jersey New Brunswick, NJ IMECE, Anaheim, CA
2 Topics Considered Modeling and Simulation Material Properties, Complex Domains Polymer Processing Optical Fiber Drawing and Coating Solidification and Other Processes Validation Enclosure Fires, Electronic Systems Conclusions and Future Research Needs
3 Different Approaches COMPLICATED GEOMETRY Transformed Domain:. Simple Grids for FDM and FVM Physical Domain: Complex, Arbitrary Discretization for FEM, FVM VARIABLE MATERIAL PROPERTIES Properties at Previous Time Step or Iteration Extrapolated Values Iterative Property Correction
4 Twin-Screw Food Extruder Feed Hopper Rotating Screw Extruder Channel Heating/Cooling Arrangement Die
5
6 Sketch of Single-Screw Polymer Extruder
7 Model of Single-Screw Polymer Extruder
8 Material Properties Accurate Data on Material Properties Material Property Variations with Temperature, Shear Rate, Concentration, Pressure, etc. Link Between Properties and Process
9 Material Properties: Shear Stress Versus Shear Rate
10 Material Properties: Viscosity Variation GLASS ν = exp [ 32 (T melt /T - 1) ] POLYMER μ = μ o (. γ /. γ o ) n - 1 exp ( b /T ) REACTIVE POLYMER μ = μ o (. γ /. γ o ) n - 1 exp [ -b (T - T o )] exp [ -b m (C - C o )]
11 Chemical Kinetics FOOD d[(1-x)]/dt = -K (1 X) m with K = K T + K S where K T = K To exp ( - E T / RT ) K S = K So exp ( - E S /τ η ) X: Degree of Conversion CVD K = K o p SiH4 /[1 + K 1 p H2 + K 2 p SiH4 ]
12 Transport in the Channel of a Single-Screw Polymer Extruder
13 Model of Extruder with Arbitrary Screw Profile
14 Distributive Mixing in Extruder Channel
15
16 Measured and Calculated Temperature Profiles in Single- Screw Extruder 3D (FEM) 2D (FDM)
17 Modeling of Twin-Screw Polymer Extruder
18 Flow in NIP Region of Twin-Screw Extruder
19 Flow in the Region Between Two Co-Rotating Cylinders
20 Measured and Calculated Velocity Profiles in Polymer Extrusion
21 Modeling of Flow through Extrusion Dies
22 Optical Fiber Drawing System Drawing Furnace Fiber Cooling Coating Curing Take-Up
23 Sketch of Optical Fiber Drawing System
24 Material properties: Radiation Properties of Silica Glass
25 Cylindrical Draw Furnace and Finite Zones For Radiation Analysis
26 The Governing Equations for Glass and Inert Gas
27 Schematic Diagram of Double-layer Optical Fiber r (1), u, u (2) r, u a a z (1), v, v (2) z,va (2) r 0 V g (1) r 0 Core R F Cladding L Fiber (1) r f (2) r f Furnace V f
28 Landau s Transformations Glass Layer One Gl ass Layer Two Inert Gas Cylinders
29 Generation of Neck-Down Profile
30 Iterative Convergence Of Neck-Down Profile
31 Streamlines in Optical Fiber Drawing
32 Isotherms in Optical Fiber Drawing
33 Neck-Down Profile from Numerical Simulation and Experimentation
34 Calculated Versus Measured Tension in Optical Fiber Drawing
35 Flow in Fiber Coating Process Open-Cup Pressurized
36 Grid Generation in the Fiber Coating Process
37 Meniscus in Fiber Coating Process A, C: Unpressurized B, D: Pressurized
38 Effect of Meniscus
39 Pressure contours for v f =11 m/s Pressure distributions along the die wall for various fiber speeds Pressure Distributions in Coating Die
40 Melting in Enclosed Region
41 Solidification of Water in an Enclosure with Conjugate Effects
42 Melting of Gallium in Enclosed Region Streamlines Isotherms
43 Measured Versus Calculated Solid- Liquid Interface in Solidification
44 Solidification with Conjugate Transport at the Wall Isotherms Streamlines
45 Chemical Vapor Deposition
46 Contours in Horizontal TiN CVD Reactor
47 Film Growth in a Horizontal CVD Reactor
48 A Typical Room Fire
49 Room & Corridor System
50 Laminar Flow Generated by a Fire in a Room with an Opening
51 Flow and Thermal Fields for Turbulent Flow (a) Steady state flow and thermal Field, (a) Isotherms and (b) Streamlines. (b)
52 Flows in a Vertical Elevator Shaft and in a Stairwell From Marshall (1986)
53 Natural Convective Cooling of Electronic Equipment
54 Flow in an Enclosure due to Isolated Heat Sources
55 Governing Equations with Variable Properties
56 Governing Equations with Variable Properties
57 Governing Equations with Variable Properties
58 Steady Streamlines on Y-Z Planes for 3D Flow in a Channel
59 Isotherms on the Horizontal Midplane at τ=8.0 (Top Figure) and τ=24 (Bottom Figure) for Re=20, Gr=10000 and Ar=10.0
60 Conclusions Strong Need for Material Properties Must Model Changing Material Characteristics Use of Properties at Previous Time or Iteration Convenient Improved Accuracy and Convergence with Extrapolated Property Values Transformations, FEM, other Approaches for Complex Geometry
61 Conclusions (Contd.) Important to Employ Suitably Grid Critical to Represent Boundary Conditions Correctly Convergence Characteristics Strong Functions of Numerical Scheme Experimentation for Validation and Insight
62 Flow in Neck-Down Region During Optical Fiber Drawing
63 Viscous Dissipation and Temperature in Neck-Down Region During Optical Fiber Drawing
64 Flow and Temperature Fields in a Horizontal CVD System
65 Experimental and Numerical Results on Horizontal Channel Flow for CVD
Fluid Flow Phenomena in Materials Processing The 2000 Freeman Scholar Lecture
Fluid Flow Phenomena in Materials Processing The 2000 Freeman Scholar Lecture Yogesh Jaluria Fellow ASME, Department of Mechanical and Aerospace Engineering, Rutgers, the State University of New Jersey,
More informationContents. 1. Introduction to Materials Processing Starting Materials 21. Acknowledgements
Preface Acknowledgements xiii xv 1. Introduction to Materials Processing 1 1.1 Materials Processing: Definition and Scope 1 1.2 Three Approaches to Materials Processing 4 1.3 Materials Processing Steps
More informationELONGATIONAL FLOW IN MULTIPLE SCREW EXTRUDERS
ELONGATIONAL FLOW IN MULTIPLE SCREW EXTRUDERS J. E. Loukus and A. C. Halonen M. Gupta GS Engineering Plastic Flow, LLC Houghton, MI 4993 Houghton, MI 4993 Abstract Flows of a low-density polyethylene in
More informationAbstract. Nomenclature. A Porosity function for momentum equations L Latent heat of melting (J/Kg) c Specific heat (J/kg-K) s Liquid fraction
Enthalpy Porosity Method for CFD Simulation of Natural Convection Phenomenon for Phase Change Problems in the Molten Pool and its Importance during Melting of Solids Abstract Priyanshu Goyal, Anu Dutta,
More informationCOOLING EFFECT ENHANCEMENT IN MAGNETRON SPUTTERING SYSTEM
Fifth International Conference on CFD in the Process Industries CSIRO, Melbourne, Australia 13-15 December 2006 COOLING EFFECT ENHANCEMENT IN MAGNETRON SPUTTERING SYSTEM Jae-Sang BAEK and Youn J. KIM*
More informationTwin Screw Extruder and Continuous Mixer Rate Limitations
MPC Materials Processing Consultants LLC Twin Screw Extruder and Continuous Mixer Rate Limitations Anthony C. Neubauer SPE Fellow; Dow Fellow (retired) Materials Processing Consultants LLC Why Extruders?
More informationA MODEL FOR RESIDUAL STRESS AND PART WARPAGE PREDICTION IN MATERIAL EXTRUSION WITH APPLICATION TO POLYPROPYLENE. Atlanta, GA 30332
Solid Freeform Fabrication 2016: Proceedings of the 26th 27th Annual International Solid Freeform Fabrication Symposium An Additive Manufacturing Conference A MODEL FOR RESIDUAL STRESS AND PART WARPAGE
More informationLiquid-Solid Phase Change Modeling Using Fluent. Anirudh and Joseph Lam 2002 Fluent Users Group Meeting
Liquid-Solid Phase Change Modeling Using Fluent Anirudh and Joseph Lam 2002 Fluent Users Group Meeting Solidification Model FLUENT can be used to solve fluid flow problems involving both solidification
More informationNumerical prediction of temperature and density distributions in selective laser sintering processes
Numerical prediction of temperature and density distributions in selective laser sintering processes Gabriel Bugeda Miguel Cervera and Guillermo Lombera The authors Gabriel Bugeda and Miguel Cervera are
More informationThe formation of oscillation marks in continuous casting of steel
The formation of oscillation marks in continuous casting of steel 1 Introduction Continuous casting is a method of producing an infinite solid strand from liquid metal by continuously solidifying it as
More informationExtrusion. Key Issues to Address. Lecture 2. Process. Process Variants. Process Analysis. Problem Solving
Extrusion Lecture 2 Chapter 4 Key Issues to Address Process Process Variants Process Analysis Problem Solving S.V. Atre 1 Extrusion Material is forced to flow through a die orifice to provide long continuous
More informationSimulation of High Pressure Die Casting (HPDC) via STAR-Cast
Simulation of High Pressure Die Casting (HPDC) via STAR-Cast STAR Global Conf. 2012, 19-21 March, Noordwijk Romuald Laqua, Access e.v., Aachen High Pressure Die Casting: Machines and Products Common Materials:
More informationModeling of Transport Phenomena in Metal Foaming
Modeling of Transport Phenomena in Metal Foaming B. Chinè 1,3 and M. Monno 2,3 1 Instituto Tecnològico de Costa Rica, Costa Rica; 2 Politecnico di Milano, Italy; 3 Laboratorio MUSP, Macchine Utensili e
More informationCFD/FEM Based Analysis Framework for Wind Effects on Tall Buildings in Urban Areas
2017 2nd International Conference on Industrial Aerodynamics (ICIA 2017) ISBN: 978-1-60595-481-3 CFD/FEM Based Analysis Framework for Wind Effects on Tall Buildings in Urban Areas Qiao Yan, Dalong Li,
More informationINFLUENCE OF A ROTATING MAGNETIC FIELD ON THE CRYSTAL GROWTH OF GaAs
INFLUENCE OF A ROTATING MAGNETIC FIELD ON THE CRYSTAL GROWTH OF GaAs Olaf Pätzold 1, Ilmars Grants, Ulrike Wunderwald 1, and Gunter Gerbeth 1. Introduction The GaAs wafer market is characterised by an
More informationStudy of water falling film over horizontal drop shaped and inverted drop shaped tubes
Study of water falling film over horizontal drop shaped and inverted drop shaped tubes Vipul Kumar Sharma, Nirmal Kant Singh 2 Dept. of Mechanical Engineering, GLBITM, Greater Noida, U.P, 236, India 2
More informationSimulation of the in luence of gas low on melt convection and phase boundaries in FZ silicon single crystal growth
Simulation of the in luence of gas low on melt convection and phase boundaries in FZ silicon single crystal growth Andrejs Sabanskis, Jānis Virbulis University of Latvia, Riga, Latvia E-MRS 2014 Spring
More informationNumerical Investigation of the Integration of Heat Transfer Devices into Wind Towers
A publication of CHEMICAL ENGINEERING TRANSACTIONS VOL. 34, 2013 Guest Editors: Neven Duić, Petar Sabev Varbanov Copyright 2013, AIDIC Servizi S.r.l., ISBN 978-88-95608-25-9; ISSN 1974-9791 The Italian
More informationSIMULATION OF ROTATIONAL MOLDING. Abbas TCHARKHTCHI
SIMULATION OF ROTATIONAL MOLDING Abbas TCHARKHTCHI INTRODUCTION Non-reactive rotational molding Reactive rotational molding NON-REACTIVE ROTATIONAL MOLDING There are not any chemical reactions during rotomolding.
More informationA Phase Field Model for Grain Growth and Thermal Grooving in Thin Films with Orientation Dependent Surface Energy
Solid State Phenomena Vol. 129 (2007) pp. 89-94 online at http://www.scientific.net (2007) Trans Tech Publications, Switzerland A Phase Field Model for Grain Growth and Thermal Grooving in Thin Films with
More informationSplat formation in plasma-spray coating process*
Pure Appl. Chem., Vol. 74, No. 3, pp. 441 445, 2002. 2002 IUPAC Splat formation in plasma-spray coating process* Javad Mostaghimi and Sanjeev Chandra Centre for Advanced Coating Technologies, University
More informationINDEX. forging Axisymmetric isothermal forging, cabbaging, compression of cylinders,
INDEX Accuracy of simulation, 333 Air bending, 21, 141-147 Air rounding, 21 ALPID program, 136 Analysis in metal forming, 26-52 closed-die forging, 34, 35-36, 37 cold extrusion, 39-41 cold forging, 39-41
More informationBatch Annealing Model for Cold Rolled Coils and Its Application
China Steel Technical Report, No. 28, pp.13-20, (2015) Chun-Jen Fang and Li-Wen Wu 13 Batch Annealing Model for Cold Rolled Coils and Its Application CHUN-JEN FANG and LI-WEN WU New Materials Research
More informationTechnical Specifications
Technical Specifications Dimafix is a smart adhesive that varies its adherence properties according to the temperature, in the range usually used for 3D printing. Figure 1 shows how Dimafix increases adherence
More informationSCREW DESIGN BASICS The Processor Point Of View. Andrew W. Christie Optex Process Solutions, LLC
SCREW DESIGN BASICS The Processor Point Of View Andrew W. Christie Optex Process Solutions, LLC www.optexprocesssolutions.com Outline Define the goal Review basic extruder components Discuss process elements
More informationNumerical Investigation of the Flow Dynamics of a Supersonic Fluid Ejector
Proceedings of the International Conference on Heat Transfer and Fluid Flow Prague, Czech Republic, August 11-12, 2014 Paper No. 171 Numerical Investigation of the Flow Dynamics of a Supersonic Fluid Ejector
More informationHeat transfer modelling of slot jet impinging on an inclined plate
Heat transfer modelling of slot jet impinging on an inclined plate A. Ramezanpour 1, H. Shirvani 1 & I. Mirzaee 2 1 School of Design and Communication Systems, APU University, UK 2 CFD Research Centre,
More informationMELT POOL GEOMETRY SIMULATIONS FOR POWDER-BASED ELECTRON BEAM ADDITIVE MANUFACTURING. Bo Cheng and Kevin Chou
MELT POOL GEOMETRY SIMULATIONS FOR POWDER-BASED ELECTRON BEAM ADDITIVE MANUFACTURING Bo Cheng and Kevin Chou Mechanical Engineering Department The University of Alabama Tuscaloosa, AL 35487 Accepted August
More informationQuenching steels with gas jet arrays
Quenching steels with gas jet arrays PAUL F STRATTON ANDREW P RICHARDSON BOC Rother Valley Way, Holbrook, Sheffield UNITED KINGDOM Paul.stratton@boc.com http://www.catweb.boc.com Abstract: - Single components
More informationChapter 19. Forming and Shaping Plastics and Composite Materials
Chapter 19 Forming and Shaping Plastics and Composite Materials Characteristics of Forming and Shaping Processes for Plastics and Composite Materials Forming and Shaping Processes for Plastics, Elastomers,
More informationFluid Mechanics. The Energy Equation [7] Dr. Mohammad N. Almasri
1 Fluid Mechanics The Energy Equation [7] Dr. Mohammad N. Almasri http://sites.google.com/site/mohammadnablus/home 2 Introduction There are various types of devices and components that are utilized in
More informationPREPARED BY: DR. RAHIMAH OTHMAN FOOD ENGINEERING (ERT 426) SEMESTER 1 ACADEMIC SESSION 2016/17
1 PREPARED BY: DR. RAHIMAH OTHMAN FOOD ENGINEERING (ERT 426) SEMESTER 1 ACADEMIC SESSION 2016/17 SUBTOPICS 2 1. Introduction 2. Basic Principles of Extrusion 3. Extrusion System 3.1 Cold Extrusion 3.2
More informationThree-Dimensional Numerical Simulation of a Model Wind Turbine
Three-Dimensional Numerical Simulation of a Model Wind Turbine N. Tabatabaei 1, M.J. Cervantes 1,2, C. Trivedi 2, J-O Aidanpää 1 1 Luleå University of Technology, Sweden 2 Norwegian University of Science
More informationArticle information: Users who downloaded this Article also downloaded: *
Rapid Prototyping Journal Emerald Article: Numerical prediction of temperature and density distributions in selective laser sintering processes Gabriel Bugeda Miguel Cervera, Guillermo Lombera Article
More informationTrench Structure Improvement of Thermo-Optic Waveguides
International Journal of Applied Science and Engineering 2007. 5, 1: 1-5 Trench Structure Improvement of Thermo-Optic Waveguides Fang-Lin Chao * Chaoyang University of Technology, Wufong, Taichung County
More informationANSYS, Inc. ANSYS Icepak R18 Update
1 2016 ANSYS, Inc. ANSYS Icepak R18 Update Icepak R18 Highlights Enhancements to SIwave Icepak solution Added automated iterative loop Improved Via handling capabilities Individually modeling vias
More informationOptimization of Wall Thickness and Thermal Conductivity for Minimum Heat Losses for Induction Furnace by FEA
IJSRD - International Journal for Scientific Research & Development Vol. 3, Issue 03, 2015 ISSN (online): 2321-0613 Optimization of Wall Thickness and Thermal Conductivity for Minimum Heat Losses for Induction
More informationCFD on Small Flow Injection of Advanced Accumulator in APWR
54 CFD on Small Flow Injection of Advanced Accumulator in APWR TOMOSHIGE TAKATA TAKAFUMI OGINO TAKASHI ISHIBASHI TADASHI SHIRAISHI The advanced accumulator in the advanced pressurized-water reactor is
More informationDesign of a Small Scale CFB Boiler Combustion Chamber for Laboratory Purposes
International Journal of Emerging Engineering Research and Technology Volume 3, Issue 9, September, 2015, PP 1-7 ISSN 2349-4395 (Print) & ISSN 2349-4409 (Online) Design of a Small Scale CFB Boiler Combustion
More informationEffect of Bearing Design Parameters on the Minimum Oil Film Thickness of Hydrodynamic Journal Bearing
Volume: 04 Issue: 08 Aug -2017 www.irjet.net p-issn: 2395-0072 Effect of Bearing Design Parameters on the Minimum Oil Film Thickness of Hydrodynamic Journal Bearing Mohammed Ali 1, S.K. Somani 2 1Department
More informationSIMPLIFIED MODELS FOR SINGLE-SCREW EXTRUSION APPLICATIONS
SIMPLIFIED MODELS FOR SINGLE-SCREW EXRUSION APPLICAIONS L. A. Vignol, N. S. Cardozo *, A. R. Secchi, F. Angiolini 2, M. D. Pizzol 2, Departamento de Engenharia Química - Universidade Federal do Rio Grande
More informationEXPERIMENTAL INVESTIGATION ON COOLING RATE FOR CENTRIFUGAL CASTING Kirti Kanaujiya, Yugesh Mani Tiwari Department of Mechanical Engineering
ISSN 2320-9135 1 International Journal of Advance Research, IJOAR.org Volume 3, Issue 9, September 2015, Online: ISSN 2320-9135 EXPERIMENTAL INVESTIGATION ON COOLING RATE FOR CENTRIFUGAL CASTING Kirti
More informationAPN029. The SER2 Universal platform for material testing. A.Franck TA Instruments Germany
APN029 The SER2 Universal platform for material testing A.Franck TA Instruments Germany Keywords: Elongation viscosity, Hencky rate, SER, friction testing INTRODUCTION The roots of extensional rheometry
More information3. Mechanical Properties of Materials
3. Mechanical Properties of Materials 3.1 Stress-Strain Relationships 3.2 Hardness 3.3 Effect of Temperature on Properties 3.4 Fluid Properties 3.5 Viscoelastic Properties Importance of Mechanical Properties
More informationPerformance Analysis for Natural Draught Cooling Tower & Chimney through Numerical Simulation
Performance Analysis for Natural Draught Cooling Tower & Chimney through Numerical Simulation Kanteyya A 1, Kiran Kumar Rokhade 2 Assistant Professor, Department of Mechanical Engineering, HKESSLN College
More informationMETAL FORMING AND THE FINITE-ELEMENT METHOD SHIRO KOBAYASHI SOO-IK OH TAYLAN ALTAN
METAL FORMING AND THE FINITE-ELEMENT METHOD SHIRO KOBAYASHI SOO-IK OH TAYLAN ALTAN New York Oxford OXFORD UNIVERSITY PRESS 1989 CONTENTS Symbols, xiii 1. Introduction, 1 1.1 Process Modeling, 1 1.2 The
More informationOptimization of embedded Heat Exchanger in a flat plate Integrated Collector Storage Solar Water Heater (ICSSWH), with indirect heat withdrawal.
World Renewable Energy Congress (WRECX) Editor A. Sayigh 2008 WREC. All rights reserved. 1815 Optimization of embedded Heat Exchanger in a flat plate Integrated Collector Storage Solar Water Heater (ICSSWH),
More informationAn Investigation of Gas-Powder Flow in Laser-Based Direct Metal Deposition
Abstract An Investigation of Gas-Powder Flow in Laser-Based Direct Metal Deposition Srdja Zekovic, Rajeev Dwivedi, Radovan Kovacevic Research Center for Advanced Manufacturing Southern Methodist University,
More informationHEAT TRANSFER AND FLUID FLOW IN STATIONARY GTA WELDING OF γ-tial BASED ALLOYS: EFFECT OF THERMOCAPILLARY FLOW
Second International Conference on CFD in the Minerals and Process Industries CSIRO, Melbourne, Australia 6-8 December 999 HEAT TRANSFER AND FLUID FLOW IN STATIONARY GTA WELDING OF γ-tial BASED ALLOYS:
More informationNew Evaluation Methods for Pressure Sensitive Adhesive (PSA) Tapes Used in the Semiconductor Industry
New Evaluation Methods for Pressure Sensitive Adhesive (PSA) Tapes Used in the Semiconductor Industry by Tomoyuki Aogaki *, Hidefumi Miyagi * and Yoshihisa Kano * We propose new evaluation methods for
More informationModelling of Multi-Crystalline Silicon Growth Process for PV Applications
International Journal of ChemTech Research CODEN (USA): IJCRGG ISSN : 0974-4290 Vol.6, No.13, pp 5286-5290, November 2014 MESCon 2014 [4th -5 th September 2014] National Conference on Material for Energy
More informationMetal Matrix Composite (MMC)
Matrix Metal Matrix Composite (MMC) The matrix is the monolithic material into which the reinforcement is embedded, and is completely continuous. This means thatt there is apath throughh the matrix ti
More informationAn Extrusion Die with Twin Cavities for Semi-hollow Al-Profiles
An Extrusion Die with Twin Cavities for Semi-hollow Al-Profiles Xuemei Huang 1,a, Rurong Deng 2,b * 1,2 Guangzhou Vocational College of Science and Technology, Guangzhou, 510550, China a Email: 41784402@qq.com,
More informationChapter TYPE OF EXTRUDERS AND EXTRUSION CONDITIONS
Chapter-02 16 TYPE OF EXTRUDERS AND EXTRUSION CONDITIONS Chapter-02 17 I. INTRODUCTION The different types of extruders and extrusion conditions are discussed for optimizing the extrusion conditions for
More informationFluid dynamics of a post-combustion chamber in electric arc steelmaking plants
Computational Methods and Experimental Measurements XV 205 Fluid dynamics of a post-combustion chamber in electric arc steelmaking plants L. Labiscsak 1, G. Straffelini 1, C. Corbetta 2 & M. Bodino 2 1
More informationGelimat Technology. Ultrahigh-Speed Thermokinetic Mixing, Compounding & Fluxing. Processing Excellence in Motion DUSATEC DUSATEC, INC.
Gelimat Technology Ultrahigh-Speed Thermokinetic Mixing, Compounding & Fluxing Processing Excellence in Motion www.dusatec.com DUSATEC, Inc. 19 Spear Road Ramsey, NJ 07446 USA Phone: +1-201-773-8000 E-mail:
More informationModeling of Residual Stresses in a Butt-welded Joint with Experimental Validation
Modeling of Residual Stresses in a Butt-welded Joint with Experimental Validation Vivek Srivastava* and AG Rao Naval Materials Research Laboratory (NMRL), Defence Research and Development Organization
More informationPrediction of Pollutant Emissions from Industrial Furnaces Using Large Eddy Simulation
Paper # B03 Topic: Turbulent Flames 5 th US Combustion Meeting Organized by the Western States Section of the Combustion Institute and Hosted by the University of California at San Diego March 25-28, 2007.
More informationInvestigation of Surface Vortex Formation at Pump Intakes in PWR
Investigation of Surface Vortex Formation at Pump Intakes in PWR P. Pandazis 1, A. Schaffrath 1, F. Blömeling 2 1 Gesellschaft für Anlagen- und Reaktorsicherheit (GRS) ggmbh, Munich 2 TÜV NORD SysTec GmbH
More informationNew Developments in Co-Rotating Twin-Screw Extrusion for Production of Long Glass Fiber Composites
New Developments in Co-Rotating Twin-Screw Extrusion for Production of Long Glass Fiber Composites Daniel Schwendemann, Coperion Werner & Pfleiderer, Stuttgart Abstract Long fibre reinforced thermoplastics
More informationHeat Transfer in Laser Tumor Excision
BEE 453: COMPUTER AIDED ENGINEERING Professor Ashim K. Datta May 7, 2004 Heat Transfer in Laser Tumor Excision Submitted by Alan Chen, Edwin Cheung, Steven Lee, John Picuri, Tsung Li Shih Contents Executive
More information1) Fracture, ductile and brittle fracture 2) Fracture mechanics
Module-08 Failure 1) Fracture, ductile and brittle fracture 2) Fracture mechanics Contents 3) Impact fracture, ductile-to-brittle transition 4) Fatigue, crack initiation and propagation, crack propagation
More informationHeat Transfer Simulation of Impinging Jet with Finned Heat Sink
Heat Transfer Simulation of Impinging Jet with Finned Heat Sink Shivakumar H 1, Krishnamurthy K N 2, Akashdeep B.N 3 Department of Thermal power Engineering, M.Tech student 1, Assistant professor 2, VTU
More informationCreep and High Temperature Failure. Creep and High Temperature Failure. Creep Curve. Outline
Creep and High Temperature Failure Outline Creep and high temperature failure Creep testing Factors affecting creep Stress rupture life time behaviour Creep mechanisms Example Materials for high creep
More informationESTIMATION OF ELONGATIONAL VISCOSITY OF POLYMERS FOR ACCURATE PREDICTION OF JUNCTURE LOSSES IN INJECTION MOLDING
ESTIMATION OF ELONGATIONAL VISCOSITY OF POLYMERS FOR ACCURATE PREDICTION OF JUNCTURE LOSSES IN INJECTION MOLDING Mahesh Gupta Mechanical Engineering-Engineering Mechanics Department Michigan Technological
More informationAnalysis on Viscous Flow of VAD Silica Glass During Heat Forming
INDUSTRIAL MATERIALS Analysis on Viscous Flow of VAD Silica Glass During Heat Forming Tomoyuki YOKOKAWA*, Tadashi ENOMOTO, Takashi YAMAZAKI, Kazuya KUWAHARA, Masaru FURUSHOU and Ken MANABE Silica glass
More informationMechanical behavior of crystalline materials- Comprehensive Behaviour
Mechanical behavior of crystalline materials- Comprehensive Behaviour In the previous lecture we have considered the behavior of engineering materials under uniaxial tensile loading. In this lecture we
More informationNumerical Simulation of Core Gas Defects in Steel Castings
Numerical Simulation of Core Gas Defects in Steel Castings Copyright 2014 American Foundry Society L. Xue Flow Science, Inc., Santa Fe, New Mexico M.C. Carter Flow Science, Inc., Santa Fe, New Mexico A.V.
More informationCeramic and glass technology
1 Row materials preperation Plastic Raw materials preperation Solid raw materials preperation Aging wet milling mastication Mixing seving Grain size reduction Milling Crushing Very fine milling Fine milling
More informationModeling and experimental results of heavy oil injection into a high pressure entrained flow gasifier
Modeling and experimental results of heavy oil injection into a high pressure entrained flow gasifier André Bader 1, Paul Tischer 1, Peter Seifert 1, Andreas Richter 2, Bernd Meyer 1 Institute of Energy
More informationManufacturing and Reliability Modelling
Manufacturing and Reliability Modelling Silicon Chip C Bailey University of Greenwich London, England Printed Circuit Board Airflow Temperature Stress at end of Reflow Stress Product Performance in-service
More informationBehaviors of QFN Packages on a Leadframe Strip
Behaviors of QFN Packages on a Leadframe Strip Eric Ouyang, Billy Ahn, Seng Guan Chow, Anonuevo Dexter, SeonMo Gu, YongHyuk Jeong, JaeMyong Kim STATS ChipPAC Inc 46429 Landing Parkway, Fremont, CA 94538,
More informationRheological Indicators to Predict the Extrusion Coating Performance of LDPE. Per-Åke Clevenhag and Claes Oveby Tetra Pak Carton Ambient AB ABSTRACT
Rheological Indicators to Predict the Extrusion Coating Performance of LDPE Per-Åke Clevenhag and Claes Oveby Tetra Pak Carton Ambient AB ABSTRACT LDPE from high-pressure autoclave reactors for extrusion
More informationNUMERICAL SIMULATION OF PCM INTERGRATED SOLAR COLLECTOR STORAGE WATER HEATER
NUMERICAL SIMULATION OF PCM INTERGRATED SOLAR COLLECTOR STORAGE WATER HEATER Muhammad Redzuan, C. N 1., Saw, C. L. 1, Lew, W. C. 2, Choong, C. G. 1, Salvinder, S. 3, H. H. Al-Kayiem 4 and Afolabi Lukmon
More informationCHAPTER 9 PHASE DIAGRAMS
CHAPTER 9 PHASE DIAGRAMS PROBLEM SOLUTIONS 9.14 Determine the relative amounts (in terms of mass fractions) of the phases for the alloys and temperatures given in Problem 9.8. 9.8. This problem asks that
More informationDroplet formation mechanisms in metallurgical processes
EPSRC Centre for Doctoral Training in Industrially Focused Mathematical Modelling Droplet formation mechanisms in metallurgical processes Jane J. E. Lee Table of Contents 1. Introduction...2 Background...2
More informationMECHANICS OF PASTE FLOW IN RADIAL SCREEN EXTRUDERS
MECHANICS OF PASTE FLOW IN RADIAL SCREEN EXTRUDERS P. J. Martin and D. I. Wilson Department of Chemical Engineering, University of Cambridge, UK ABSTRACT High solids volume particle-liquid mixtures, sometimes
More informationRHEOLOGICAL PROPERTIES ROSAND RH7 & RH10 RHEOLOGICAL INSTRUMENTS BACKED WITH RHEOLOGICAL EXPERIENCE
RHEOLOGICAL PROPERTIES ROSAND RH7 & RH10 RHEOLOGICAL INSTRUMENTS BACKED WITH RHEOLOGICAL EXPERIENCE ADVANCED, POWERFUL FLOOR STANDING CAPILLARY RHEOMETERS FOR RESEARCH AND PRODUCT DEVELOPMENT Since its
More informationObservation and numerical simulation of melt pool dynamic and beam powder interaction during selective electron beam melting
Observation and numerical simulation of melt pool dynamic and beam powder interaction during selective electron beam melting T. Scharowsky, A. Bauereiß, R.F. Singer, C. Körner *Department of Materials
More informationMonte Carlo approach to island formation during thermal treatment of thin films*
Monte Carlo approach to island formation during thermal treatment of thin films* Ann Marie Hardin December 6, 2006 *F. Lallet, R. Bachelet, A. Dauger, and N. Olivi-Tran, (2006) Physical Review B, 74 Outline
More informationThe potential of earth-air heat exchangers for low energy cooling of buildings in South Algeria
Available online at www.sciencedirect.com Energy Procedia 18 (2012 ) 496 506 The potential of earth-air heat exchangers for low energy cooling of buildings in South Algeria Abdelkrim.Sehli *, Abdelhafid.Hasni,
More informationAN ANALYSIS OF POROUS MEDIA HEAT SINKS FOR NATURAL CONVECTION COOLED MICROELECTRONIC SYSTEMS. Eric R. Savery
AN ANALYSIS OF POROUS MEDIA HEAT SINKS FOR NATURAL CONVECTION COOLED MICROELECTRONIC SYSTEMS. by Eric R. Savery Engineering Project submitted in partial fulfillment of the requirements for the degree of
More informationThermal Analysis Excellence
Thermal Analysis Excellence DMA 1 STAR e System Innovative Technology Versatile Modularity Swiss Quality Dynamic Mechanical Analysis Comprehensive Materials Characterization DMA Excellence Multipurpose
More informationIMPROVE MIXING BY GENERATING ELONGATIONAL FLOW
IMPROVE MIXING BY GENERATING ELONGATIONAL FLOW Introduction By: Dr. Chris Rauwendaal Rauwendaal Extrusion Engineering, Inc. Los Altos Hills, California 94022 USA www.rauwendaal.com Most dispersive mixers
More informationESTIMATION OF THE GAS EXHAUST RATE REQUIRED ON AN ALUMINIUM REDUCTION CELL DURING START-UP USING TASCflow3D
ESTIMATION OF THE GAS EXHAUST RATE REQUIRED ON AN ALUMINIUM REDUCTION CELL DURING START-UP USING TASCflow3D Marc Dupuis (GéniSim Eng.) Edgar Dernedde (Kroll International) ABSTRACT During the start-up
More informationLearning objectives. Upon successful completion of this lecture, the participants will be able to:
Solomon Seyoum Learning objectives Upon successful completion of this lecture, the participants will be able to: Describe and perform the required step for designing sewer system networks Outline Design
More informationChapter 15 Extrusion and Drawing of Metals
Introduction Chapter 15 Extrusion and Drawing of Metals Alexandra Schönning, Ph.D. Mechanical Engineering University of North Florida Figures by Manufacturing Engineering and Technology Kalpakijan and
More informationClosely Intermeshing Counter-Rotating Twin Screw Extrusion of Polymers
Closely Intermeshing Counter-Rotating Twin Screw Extrusion of Polymers Adrian Lewandowski Polymer Processing Institute, Warsaw University of Technology, 02-524 Warsaw, Narbutta 85, Poland, e-mail: a.lewandowski@wip.pw.edu.pl
More informationColor change time is money
Open House 2012 Color change time is money Dieter Rothe Agenda Our problem down time and waste Master batch and flow channels Possible solutions Summary Page 2 Color change takes forever Why? The converter
More informationTribology in Hydrostatic Extrusion of Metals A review
Tribology in Hydrostatic Extrusion of Metals A review P. Tomar*, R. K. Pandey, Y. Nath Mechanical and Automation Engineering Department G.G.S. Indraprastha University, Delhi-110403, India *Corresponding
More informationAerodynamic Design of 2.5 MW Horizontal Wind Turbine Blade in Combination with CFD Analysis
Aerodynamic Design of 2.5 MW Horizontal Wind Turbine Blade in Combination with CFD Analysis Seul-Ki Yeom *, Tae-Jin Kang *, Warn-Gyu Park 1) School of Mechanical Engineering, Pusan National University,
More informationCalculation and Analysis the Influence on the Cooling Water Velocity and Hot Metal Circulation to the Long Life Blast Furnace
Journal of Materials Science and Engineering B 5 (1-2) (2015) 36-41 doi: 10.17265/2161-6221/2015.1-2.003 D DAVID PUBLISHING Calculation and Analysis the Influence on the Cooling Water Velocity and Hot
More informationNumerical study of the influence of injection/production well perforation location on CO 2 -EGS system
Available online at www.sciencedirect.com Energy Procedia 00 (2013) 000 000 www.elsevier.com/locate/procedia GHGT-11 Numerical study of the influence of injection/production well perforation location on
More informationTEMPERATURE PROFILE IN THE MOLD OF THE CONTINUOUS CASTING
Proceedings of the 11 th Brazilian Congress of Thermal Sciences and Engineering -- ENCIT 26 Braz. Soc. of Mechanical Sciences and Engineering -- ABCM, Curitiba, Brazil, Dec. 5-8, 26 ERATURE PROFILE IN
More informationWoodpulp fibres as reinforcements for high-melting engineering thermoplastics for under-the-hood automotive applications
Woodpulp fibres as reinforcements for high-melting engineering thermoplastics for under-the-hood automotive applications Daniel F. Caulfield (1), and Rodney E. Jacobson (1), Karl D. Sears, (2) and John
More informationIntegrated Dynamic Simulation for Process Optimization and Control
Interated Dynamic Simulation for Process Optimization and Control G. Brian Lu, Laura L. Tedder, Monalisa Bora, and Gary W. Rubloff SF Enineerin Research Center for Advanced Electronic Materials Process
More informationEXPERIMENTAL EVALUATION OF RBD PALM OLEIN AS LUBRICANT IN COLD METAL FORMING
Jurnal Mekanikal December 2010, No. 31, 1-10 EXPERIMENTAL EVALUATION OF RBD PALM OLEIN AS LUBRICANT IN COLD METAL FORMING S. Syahrullail *1, S. Kamitani 2 and K. Nakanishi 2 1 Faculty of Mechanical Engineering,
More information40-Ton Articulated Truck Cooling System Modelling Using STAR-CCM+
40-Ton Articulated Truck Cooling System Modelling Using STAR-CCM+ Gary Yu, Martin Timmins and Mario Ciaffarafa DENSO Marston Ltd, Bradford, BD17 7JR, UK DENSO Marston Founded in 1904 Acquired by DENSO
More informationFSI ANALYSIS OF TRAILING EDGE REGION COOLING IN HP STAGE TURBINE BLADE
FSI ANALYSIS OF TRAILING EDGE REGION COOLING IN HP STAGE TURBINE BLADE Harishkumar Kamat Chandrakant R Kini Engineering,Manipal Institute of Technology, Engineering,Manipal Institute of Technology, N Yagnesh
More informationEFFECT OF NATURAL CONVECTION PATTERNS ON OPTIMAL LOCATION AND SIZE OF A HEAT SINK IN A GEOTHERMAL RESERVOIR
PROCEEDINGS, Thirty-Sixth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, January 31 - February 2, 2011 SGP-TR-191 EFFECT OF NATURAL CONVECTION PATTERNS ON OPTIMAL
More information