Sharif University of Technology Scientia Iranica 1026-3098 16 6 2009 12 01 Investigations of Supersonic Flow Around a Long Axisymmetric Body 3132 EN M. Taeibi-Rahni Department of Aerospace Engineering,Sharif University of Technology M. Farahani Department of Mechanical and Aeronautical Engineering,Sharif University of Technology M. R. Soltani Department of Aerospace Engineering,Sharif University of Technology M.R. Heidari Department of Mechanical Engineering,Sharif University of Technology Journal Article 2010 05 12 In this work, a supersonic turbulent ow over a long axisymmetric body was investigated, both experimentally and computationally. The experimental study consisted of a series of wind tunnel tests for the ow over an ogive-cylinder body at a Mach number of 1.6 and at a Reynolds number of 8106, at angles of attack between -2 and 6 degrees. It included the surface static pressure and the boundary layer prole measurements. Further, the ow around the model was visualized using a Schlieren technique. All tests were conducted in the trisonic wind tunnel of the Qadr Research Center (QRC). Also, the same ow at zero angle of attack was computationally simulated using a multi-block grid (with patched method around the block interfaces) to solve the thin layer Navier-Stokes (TLNS) equations. The numerical scheme used was implicit Beam and Warming central dierencing, while a Baldwin-Lomax turbulence model was used to close the Reynolds Averaged Navier-Stokes (RANS) equations. The static surface pressure results show that the circumferential pressure at dierent nose sections varies signicantly with angle of attack (in contrast to the circumferential pressure signatures along the cylindrical part of the body), while the total pressure measurements in the boundary layer vary signicantly both radially and longitudinally. Two belts with various leading edge angles were installed at dierent locations along the cylindrical portion of the model. The computational results obtained were compared with some experimental ones (found by these authors), showing considerably close agreements. https://scientiairanica.sharif.edu/article_3132_fb2606a5068901da92473666256e6e5b.pdf