TURBULENT FLOW SEPARATION AHEAD OF FORWARD FACING STEPS IN SUPERSONIC TWO - DIMENSIONAL AND AXISYMMETRIC FLOWS

摘要

Pressure distributions in the separated flow region ahead of forward facing steps and on the step face in supersonic turbulent flows obtained at VKI are compared with those found by previous investigators* The following geometries were investigated :n1. Flat plate step models whichn(a) spanned the tunnel completelyn(b) spanned 75％ of the tunnel width.n2. Cone-Cylinder-step models.n3. Axisymmetric internal flow models.n(a) nozzles followed by a 90°contractionn(b) ejectors with a 90°contraction of the supersonic diffuser.