race car aerodynamics mer331 term project l.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Race Car Aerodynamics MER331- Term Project PowerPoint Presentation
Download Presentation
Race Car Aerodynamics MER331- Term Project

Loading in 2 Seconds...

play fullscreen
1 / 13

Race Car Aerodynamics MER331- Term Project - PowerPoint PPT Presentation


  • 1104 Views
  • Uploaded on

Race Car Aerodynamics MER331- Term Project. Purpose Characterize the aerodynamic performance of radio controlled vehicles Methods Surface Pressure Distribution Measurement Lift/Drag Force Measurements PIV (Particle Image Velocimetry) CFD (Computational Fluid Dynamics).

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

Race Car Aerodynamics MER331- Term Project


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
    Presentation Transcript
    1. Race Car AerodynamicsMER331- Term Project

    2. Purpose • Characterize the aerodynamic performance of radio controlled vehicles Methods • Surface Pressure Distribution Measurement • Lift/Drag Force Measurements • PIV (Particle Image Velocimetry) • CFD (Computational Fluid Dynamics)

    3. The Impact of Aerodynamics on Vehicle Shape • Compare two race cars • Both were designed for the Indy 500 Why are they so different? • Streamlining • Aerodynamic Down Force

    4. The Three Components of Aerodynamic Force

    5. Lift - Dr. Jekyll Down force (Negative Lift) • Down force increases a tires capability to produce cornering force • Down force stabilizes vehicles at high speed • Improves braking performance

    6. Drag - Mr. Hyde • Reduces top speed • Helps chasing cars to draft and catch up • Reduces effective power of engine

    7. Aerodynamic Down Force and Vehicle Performance Source: Race Car Aerodynamics, J. Katz, 1995

    8. Radio Controlled Racing • Perfect size for the Union wind tunnel • Can outfit with many body styles • Fast enough that aerodynamics affect handling

    9. (a) (c) (e) (b) (d) The Vehicles (a) Ford Taurus NASCAR racer (c) baja Beetle (b) 1969 Dodge Charger (General Lee) (d) a Mini Cooper (e) Nissan P-35 LeMans Style prototype racer

    10. The Instrumentation Two models required for each body type • PIV, Lift/Drag Test Model • Surface Pressure Model

    11. Tools Wind Tunnel Dynamometer Particle Image Velocimetry

    12. The Experiments • Surface Pressure Measurements • Lift and Drag Tests • Computational Fluid Dynamics • Particle Image Velocimetry Tests • Final: Oral Presentations and Report

    13. Questions? References: • Katz, J., Race Car Aerodynamics, Robert Bentley Publishing, 1995 • Jeremy Losaw, ME Class of 2002 Funded by the National Science Foundation (CCLI-9950521)