CALCULATIONS AND COMPARISONS OF THE FLOWFIELD ABOUT AN OGIVE CYLINDERAT M=3.5

Laminar and turbulent Navier-Stokes and Euler calculations, with and w ithout a separation model, were performed for a tangent-ogive cylinder . Comparisons were carried out between the predicted and measured surf ace pressures, and flowfield distributions of pitot pressure, static p ressure, Mach number, and the total flow angle. The laminar solution w as in overall best agreement with the experiment. However, an accurate turbulence transition model appears necessary to bring computations i nto close agreement with experiment.