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Project 5, Fluid Flow Separation Control

Project 5, Fluid Flow Separation Control. Michael Cline Junior Mechanical Engineering. Brandon Mullen Sophomore Aerospace Engineering. Project Mentor: Kirti Ghia. Progress Presentation: Week 4. Sponsored By The National Science Foundation Grant ID No.: DUE-0756921….

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Project 5, Fluid Flow Separation Control

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  1. Project 5, Fluid Flow Separation Control Michael Cline Junior Mechanical Engineering Brandon Mullen Sophomore Aerospace Engineering Project Mentor: Kirti Ghia Progress Presentation: Week 4 • Sponsored By The National Science Foundation Grant ID No.: DUE-0756921… • … in cooperation with University of Cincinnati College of Engineering and Applied Science, Cincinnati, Ohio.

  2. Project Introduction • What is flow separation? • How is flow controlled? • What are the benefits of eliminating separation? ADD CONTROL

  3. Project Goals • A working knowledge of separation flow control strategies. • Generate unique data to expand knowledge of flow separation. • Provide insight to engineering problems with the application of these control strategies and obtain enhanced performance. Project Objectives Review for unique applications/aspects to investigate. Successfully simulate and prevent airflow separation. Produce summary for Dr. Ghia’s future researchers. Publish technical paper in AIAA or Turbomachinery journal.

  4. Plasma Actuators Importance • No net mass injection. • Easily adjusted. Thomas, F. O., Kozlov, A., & Corke, T. C. (2008). “Plasma Actuators for Cylinder Flow Control and Noise Reduction.”AIAA Journal, 1921-1931.

  5. Automobile Flow Control *http://www.mrtperformance.com.au/resources/technical-documents/705-lancer-evo-x-aerodynamics

  6. Momentum Cylinders • Velocity of cylinder injects momentum into separated flow • Causes fluid to reattach and prevents negative pressure drag • Works best for “bluff” bodies *Effect of momentum injection on the aerodynamics of several bluff bodies By: V.J. Modi, B.Ying, T.Yokomizo

  7. Delta-Fins • Cause turbulent vortex flows downstream. • Turbulent flow is more likely to reattach. • Reattachment decreases separated bubble • Decreased pressure drag ensues.

  8. Decreased Separated Bubble by use of Delta-Fins Research on Aerodynamic Drag Reduction by Vortex Generators By: Masaru Koike, Tsunehisa Hagayoshi, Naoki Hamamoto

  9. Progress Project • Reviewed and compared strategies. • Finalizing implementation solutions. • Ready to begin simulation setup. Deliverables • Kept up with weekly deliverables. • Will begin frame of final deliverables shortly. • Lack of data and fully-organized review/comparison has prevented starting.

  10. WE ARE HERE -

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