ABAQUS CFD module

1. INTRODUCTION TO
ABAQUS/CFD
Presented by: A.R. Aminian
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2. ABAQUS MULTIPHYSICS
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3. ABAQUS MULTIPHYSICS:
CEL & CFD
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4. ABAQUS/CFD
• CFD output database
• Isosurfaces
• Multiple cut-planes
• Vector plots
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5. CSM VS. CFD
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6. CSM VS. CFD
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7. FLUID-SOLID STRUCTURE INTERFACE
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8. CSM VS. CFD
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9. CSM VS. CFD
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10. 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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11. CASE STUDY:
FLOW AROUND A CYLINDER
Create a “CFD” model in Abaqus/CAE
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12. CASE STUDY:
FLOW AROUND A CYLINDER
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Define a part representing the flow domain

13. CASE STUDY:
FLOW AROUND A CYLINDER
Generate the mesh
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14. CASE STUDY:
FLOW AROUND A CYLINDER
Define fluid material properties
Newtonian 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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15. CASE STUDY:
FLOW AROUND A CYLINDER
Create and assign a fluid section and instance the part
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16. CASE STUDY:
FLOW AROUND A CYLINDER
Define an incompressible flow analysis
Transient analysis
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17. CASE STUDY:
FLOW AROUND A CYLINDER
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18. CASE STUDY:
FLOW AROUND A CYLINDER
Primary solution quantities
• Velocity components
• Pressure
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19. CASE STUDY:
FLOW AROUND A CYLINDER
Laminar or turbulent flow
• Laminar flow (default)
• Choice of turbulence models
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20. CASE STUDY:
FLOW AROUND A CYLINDER
Request output variables
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21. CASE STUDY:
FLOW AROUND A CYLINDER
Define boundary conditions
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22. CASE STUDY:
FLOW AROUND A CYLINDER
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23. CASE STUDY:
FLOW AROUND A CYLINDER
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24. CASE STUDY:
FLOW AROUND A CYLINDER
CFD Analysis Execution
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25. CASE STUDY:
FLOW AROUND A CYLINDER
Monitoring the Solution
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26. CASE STUDY:
FLOW AROUND A CYLINDER
Analysis output files
• Log (.log) file
• Status (.sta) file
• Output database (.odb) file
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27. CASE STUDY:
FLOW AROUND A CYLINDER
Post Processing the Results
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28. CASE STUDY:
FLOW AROUND A CYLINDER
Contour Plots & Animations
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29. CASE STUDY:
FLOW AROUND A CYLINDER
Isosurfaces & Line Plots
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30. THE END
Positively…
Any QUESTION….?
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