This paper is a review of some of the work done at the von Karman Institute over the past years on separated flows. Emphasis is given on a fundamental phenomenon developing in reattaching high speed flows, namely, spatially periodic patterns of counter-rotating streamwise vortices. Detailed surveys made with pitot-static tubes, hot wire probes, recovery temperature and heat transfer gages are presented. The effect of streamwise vortices on transition was studied ...
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. Parameters such as step height, unit Reynolds number and Mach number were compared. It was intended, in particular, to relate the axisymmetric results to existing two-dimensional data. A general law relating the variation of the step pressure integral ...
The line of separation of a three-dimensional boundary layer on an arbitrary curvilinear surface is a special flow line on the surface of a body separating the region of separation and being the line of runoff for the limiting lines of current. Proceeding from the condition of equality to zero of frictional force in the projection on the normal to the line of separation, expressions are selected for criteria of ...
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(FLOW SEPARATION
