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Informationen zum Autor Vahid Nassehi is internationally renowned for his work in the field of computer modelling of complex flow processes. He is currently a Reader in Process Modelling in the Chemical Engineering Department of Loughborough University. Klappentext Providing a detailed reference that explains methodology and practice! Practical Aspects of Finite Element Modeling of Polymer Processing facilitates the transition from the theoretical treatment of the subject through to practical procedure via:* a descriptive approach that does not require knowledge of advanced mathematical topics* a detailed methodology for finite element modeling of various polymer processing flows* working equations of various polymeric flow models in co-ordinate systems! which can be directly translated into computer code* modelling methods illustrated by worked examples.Computational fluid dynamics is a major investigative tool in the design and analysis of complex flow processes encountered in modern industrial operations. At the core of every computational analysis is a numerical method that determines its accuracy! reliability speed and cost effectiveness. The finite element method has been established as a powerful technique that provides these requirements in the solution of fluid flow and heat transfer problems.This book develops finite element solution schemes for the governing equations of polymer processing flows and provides coverage of:* Equations of non-Newtonian fluids mechanics* Weighted residual finite element methods* Polymeric flow process modeling* Working equations of finite element schemes* Finite element software* Computer simulations Zusammenfassung This title concerns finite element analysis, which deals with the prediction of the properties and structure of elements, molecules and fluids. Inhaltsverzeichnis 1. The Basic Equations of Non-Newtonian Fluid Mechanics.1.1 Governing Equations of Non-Newtonian Fluid Mechanics1.2 Classification of Inelastic Time-Independent Fluids1.3 Inelatic Time-Dependent Fluids1.4 Viscoelastic Fluids2. Weighted Residual Finite Element Methods - An Outline.2.1 Finite Element Approximation2.2 Numerical Solutions of Differential Equations by the Weighted Residual Method3. Finite Element Modelling of Polymeric Flow Processes.3.1 Solution of the Equations of Continuity and Motion3.2 Modelling of Viscoelastic Flow3.3 Solution of the Energy Equation3.4 Imposition of Boundary Conditions in Polymeric Processing Models3.5 Free Surface and Moving Boundary Problems4. Working Equations of the Finite Element Schemes.4.1 Modelling of Steady State Stokes Flow of a Generalized Newtonian Fluid4.2 Variations of Viscosity4.3 Modelling of Steady State Viscometric Flow - Working Equations of the Continuous Penalty Scheme in Cartesian Coordinate Systems4.4 Modelling of Thermal Energy Balance4.5 Modelling of Transient Stokes Flow of Generalized Newtonian and Non-Newtonian Fluids5. Rational Approximations and Illustrative Examples.5.1 Models based on Simplified Domain Geometry5.2 Models based on Simplified Governing Equations5.3 Models representing Selected Segments of a Large Domain5.4 Models based on Decoupled Flow Equations - Simulation of the Flow inside a Cone-and-Plate Rheometer5.5 Models based on Thin Layer Approximation5.6 Stiffness Analysis of Solid Polymeric Materials6. Finite Element Software - Main Components.6.1 General Consideration to Finite Element Mesh Generation6.2 Main Components of Finite Element Processor Programs6.3 Numerical Solution of the Global Systems of Algebraic Equations6.4 Solutions Algorithms based on the Gaussian Elimination Method6.5 Computation Errors7. Computer Simulations - Finite Element Program.7.1 Program Structure and Algorithm7.2 Program Specifications7.3 Input Data File7.4 Extension of PPVN.f to Axisymmetric Problems7.5 Cir...
