AAE 450 Spring 2008 Jayme Zott Aerothermodynamics Coefficient of Drag vs. AOA CFD update

AAE 450 Spring 2008 Overview  Cd varies with AOA and M  Matlab code: –Inputs: Mach, AOA –Outputs: Cd –cd_m2.m  Based on historical and empirical (wind tunnel) data  Temporary Substitute  Aero group is currently finalizing code based on analysis of Cn, Cm, Cp, and Cd Aerothermodynamics Ref. [1] Sutton, Biblarz Ref. [2] Woods 2

AAE 450 Spring 2008 CFD Updates *Special thanks to Rhodes and Schwing  Mesh Completed  Solver running  Have access to more RAM  Convergence = reaching solution  Solution does not match Vanguard values  Still working out bumps with UNIX Aerothermodynamics Future Work  Correct CFD for Vanguard check  Complete Cd, Cp, Cm, Cn code with aero group for next week’s design analysis 3

AAE 450 Spring 2008 References 1.Sutton, George P., and Oscar Biblarz. Rocket Propulsion Elements. New York: John Wiley & Sons, Inc., The Martin Company, “The Vanguard Satellite Launching Vehicle”, Engineering Report No , April Woods, Alex, Budzinski, Brian, and Strauss Christopher. 4. Schwing, Alan, and Rhodes, Justin 5. Fluent: Fluid Flow Modeling Webinars, Compressible Flows - Solving Compressible Flow Problems; June 25, [ accessed 1/29/08] 6. Numerous ME/AAE professors and graduate students: Tsohas, Merkle, Blaisdell, Ni, Murthy 4