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Fluent-Intro 14.5 L03 BoundaryConditions

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Lecture 3 Boundary Conditions 14.5 Release Introduction to ANSYS Fluent © 2012 ANSYS, Inc. November 15, 2012 1 Release 14.5 Introduction Lecture Theme: The problem definition for all CFD simulations includes boundary conditions, cell zone conditions and material properties. The accuracy of the simulation results depends on defining these properly. Learning Aims: You will learn: ã How to define material properties ã The different boundary condition types in Fluent and how to use them ã How
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  © 2012 ANSYS, Inc. November 15, 2012 1 Release 14.5   14.5 Release Introduction to ANSYS Fluent Lecture 3 Boundary Conditions   © 2012 ANSYS, Inc. November 15, 2012 2 Release 14.5 Lecture Theme: The problem definition for all CFD simulations includes boundary conditions, cell zone conditions and material properties. The accuracy of the simulation results depends on defining these properly. Learning Aims: You will learn: ã How to define material properties ã The different boundary condition types in Fluent and how to use them ã How to define cell zone conditions in Fluent including solid zones and porous media ã How to specify well-posed boundary conditions Learning Objectives: You will know how to perform these essential steps in setting up a CFD analysis Introduction Introduction Material Properties Cell Zone Conditions Boundary Conditions Summary  © 2012 ANSYS, Inc. November 15, 2012 3 Release 14.5 Material Properties ã Fluent provides a standard database of materials and the ability to create a custom user-defined database ã Your choice of physical models may require multiple materials and dictate which material properties must be defined  – Multiphase (multiple materials)  – Combustion (multiple species)  – Heat transfer (thermal conductivity)  – Radiation (emissivity and absorptivity) ã Material properties can be customized as function of temperature, mass fraction or pressure (density)  – Use of other solution variable(s) requires a User-Defined Function (UDF) ã Select Materials in the Project Setup tree ã Or Define Materials... in the Menu bar Introduction Material Properties Cell Zone Conditions Boundary Conditions Summary  © 2012 ANSYS, Inc. November 15, 2012 4 Release 14.5 Materials Databases ã Fluent materials database  – Provides access to a number of pre-defined fluid, solid and mixture materials  – Materials can be copied to the case file and edited if required ã User-Defined material database  – Custom databases can be created, accessed and modified from the standard materials panel in Fluent Introduction Material Properties Cell Zone Conditions Boundary Conditions Summary
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