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COSMOS FloWorks Wind Tunnel Simulation

COSMOS FloWorks Wind Tunnel Simulation. ME143 Fall 2006 J. Cho B. Wilson. COSMOS FloWorks Tutorial. Build a part Car Body Wing Shape Entire Aircraft Select Simulation Parameters Fluid Fluid Velocity Run Simulation View Results. COSMOS FloWorks Tutorial. Draw a part in SolidWorks.

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COSMOS FloWorks Wind Tunnel Simulation

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  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.

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