BASE PRESSURE BEHIND TWO-DIMENSIONAL AND AXIALLY SYMMETRIC BACKWARD FACING STEPS IN A TURBULENT SUPERSONIC FLOW

摘要

The pressure behind a two-dimensional step in supersonic turbulent flow is calculated by the use of the Crocco-Lees momentum integral method. However, instead of assuming a constant mixing rate of k-0.03, it is assumed that Ct- constant. This assumption considers the turbulent mixing to be similar, in general, to the laminar case except for the much higher mixing rate. The assumption of Ct - constant leads to a similarity parameter for the pressure behind a two-dimensional step equal to Re-％, h/L.