Fundamental Physics Validation Using CREATE-AV KestrelTM Part I

Abstract

Kestrel is a fixed wing multi-physics computational based engineering (CBE) product of the High Performance Computing Modernization Program (HPCMP) Computational Research and Engineering for Acquisition Tools and Environments-Air Vehicle (CREATE TM -AV) project. Kestrel offers many advanced features including mesh deformation for moving control surfaces, aeroelastic coupling, propulsion integration, overset analysis, and prescribed motion of multiple bodies that can be very useful for a variety of aircraft applications. To help ensure that these capabilities are as robust and accurate as possible, various fundamental physics validation cases were tested. This paper covers the results of the two-dimensional (2D) test cases, including: NACA-0012 Airfoil, NACA-64A010 Airfoil, Backward Facing Step, Flat Plate, and Base Flow. Results were compared to test data, results from other software packages, and analytical methods. There was good agreement between the CREATE TM -AV Kestrel results and the comparison data. Nomenclaturefriction coefficient M = Mach number c = chord V ∞/ref = freestream velocity α or AOA = angle of attack Re = Reynolds Number