1. COSMOS FloWorks Wind Tunnel Simulation
ME143 Fall 2006
J. Cho
B. Wilson

2. COSMOS FloWorks Tutorial
Build a part
Car Body
Wing Shape
Entire Aircraft
Select Simulation Parameters
Fluid
Fluid Velocity
Run Simulation
View Results

3. COSMOS FloWorks Tutorial
Draw a part in SolidWorks

4. COSMOS FloWorks Tutorial
Execute FloWorks Add-In
Tools > Add-Ins

5. COSMOS FloWorks Tutorial
Start New Simulation
FloWorks > Project > Wizard

6. COSMOS FloWorks Tutorial
Set Simulation Units System

7. COSMOS FloWorks Tutorial
Choose Flow Type
Internal: Pipes, Ducts, etc…
External: Flow over surfaces

8. COSMOS FloWorks Tutorial
Choose Fluid

9. COSMOS FloWorks Tutorial
Set Surface Conditions

10. COSMOS FloWorks Tutorial
Set Initial Conditions
Flow Velocity and Direction
Initial Pressure and Temperature

11. COSMOS FloWorks Tutorial
Set Simulation Accuracy
More Accuracy = More Simulation Time

12. COSMOS FloWorks Tutorial
Size the Computational Domain
FloWorks > Computational Domain

13. COSMOS FloWorks Tutorial
Run Solver
FloWorks > Solver > Run

14. COSMOS FloWorks Tutorial
Wait for Solution to be Computed
Depending on geometry and accuracy, simulation time can be several hours

15. COSMOS FloWorks Tutorial
Solver Window
Completed Simulation

16. COSMOS FloWorks Tutorial
Insert Flow Trajectories
Results > Flow Trajectories > Insert
Export Images and Video

17. COSMOS FloWorks Tutorial
Results Image

18. COSMOS FloWorks Tutorial
Results Animation
Click image to Animate

19. Wind Tunnel Comparisons
Air Foil
Horizontal
Inclined 20 degrees
1969 Chevrolet Camaro
30 mph
60 mph

20. Wind Tunnel Comparisons
Airfoil Image (Horizontal Position)

21. Wind Tunnel Comparisons
Airfoil Animation (Horizontal Position)
Click image to Animate

22. Wind Tunnel Comparisons
Airfoil Results (Horizontal Position)
Low pressure zone on top of foil produces lift.
Laminar air flow over entire profile.

23. Wind Tunnel Comparisons
Airfoil Image (20° Incline)

24. Wind Tunnel Comparisons
Airfoil Animation (20° Incline)
Click image to Animate

25. Wind Tunnel Results Airfoil Results (20° Incline)
20° incline increases surface area.
More pressure is developed at bottom of airfoil, producing higher lift capabilities for take offs and in-flight maneuverability.

26. Wind Tunnel Comparisons
1969 Chevrolet Camaro (30mph)

27. Wind Tunnel Comparisons
1969 Chevrolet Camaro (30mph)
Click image to Animate

28. Wind Tunnel Comparisons
1969 Chevrolet Camaro (60mph)

29. Wind Tunnel Comparisons
1969 Chevrolet Camaro (60mph)
Click image to Animate

30. Wind Tunnel Results 1969 Chevrolet Camaro Results
Front vehicle geometry (front spoiler)
Improves aerodynamics
Rear spoiler provides a downward force
Keeps vehicle on ground at high speeds

31. Conclusion Cosmos FloWorks
All simulation data is exportable in Excel format or preformatted “Word” documents.
Flow profile are easily examined for turbulence.
Multicolored pressure lines easily display pressure differentials.
All fluid properties and flow parameters are adjustable.
Fluid information is included in program.