an introduction to abaqus cfd
Post on 11-Apr-2017
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INTRODUCTION TO ABAQUS/CFDPresented by: A.R. Aminian
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ABAQUS MULTIPHYSICS
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ABAQUS MULTIPHYSICS:CEL & CFD
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ABAQUS/CFD• CFD output database• Isosurfaces• Multiple cut-planes• Vector plots
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CSM VS. CFD
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CSM VS. CFD
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FLUID-SOLID STRUCTURE INTERFACE
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CSM VS. CFD
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CSM VS. CFD
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CASE STUDY:FLOW AROUND A CYLINDER
• Characteristic length scale: D (cylinder diameter)
• Model the flow as 3-D but with one element through the thickness and symmetry boundary conditions on the front and back faces to enforce 2-D conditions
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CASE STUDY:FLOW AROUND A CYLINDER
Create a “CFD” model in Abaqus/CAE
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CASE STUDY:FLOW AROUND A CYLINDER
Define a part representing the flow domain
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CASE STUDY:FLOW AROUND A CYLINDER
Generate the mesh
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CASE STUDY:FLOW AROUND A CYLINDER
Define fluid material propertiesNewtonian fluid• Density: 1000 kg/m3• Viscosity: 0.1 Pa.sec
Properties are chosen to set the flow Reynolds number at 100 based on cylinder diameter
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CASE STUDY:FLOW AROUND A CYLINDER
Create and assign a fluid section and instance the part
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CASE STUDY:FLOW AROUND A CYLINDER
Define an incompressible flow analysisTransient analysis
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CASE STUDY:FLOW AROUND A CYLINDER
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CASE STUDY:FLOW AROUND A CYLINDER
Primary solution quantities• Velocity components• Pressure
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CASE STUDY:FLOW AROUND A CYLINDER
Laminar or turbulent flow• Laminar flow (default)• Choice of turbulence models
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CASE STUDY:FLOW AROUND A CYLINDER
Request output variables
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CASE STUDY:FLOW AROUND A CYLINDER
Define boundary conditions
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CASE STUDY:FLOW AROUND A CYLINDER
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CASE STUDY:FLOW AROUND A CYLINDER
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CASE STUDY:FLOW AROUND A CYLINDER
CFD Analysis Execution
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CASE STUDY:FLOW AROUND A CYLINDER
Monitoring the Solution
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CASE STUDY:FLOW AROUND A CYLINDER
Analysis output files• Log (.log) file• Status (.sta) file• Output database (.odb) file
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CASE STUDY:FLOW AROUND A CYLINDER
Post Processing the Results
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CASE STUDY:FLOW AROUND A CYLINDER
Contour Plots & Animations
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CASE STUDY:FLOW AROUND A CYLINDER
Isosurfaces & Line Plots
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THE ENDPositively…
Any QUESTION….?
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