Phenomenological study of subsonic turbulent flow over a swept rearward-facing step
- Selby, G. V.
- Jun 1, 1982.
- Physical Description:
- 1 electronic document
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- The phenomenology of turbulent, subsonic flow over a swept, rearward-facing step was studied. Effects of variations in step height, sweep angle, base geometry, and end conditions on the 3-D separated flow were examined. The separated flow was visualized using smoke wire, oil drop, and surface tuft techniques. Measurements include surface pressure, reattachment distance and swirl angle. Results indicate: (1) model/test section coupling affects the structure of the separated flow, but spanwise end conditions do not; (2) the independence principle is evidently valid for sweep angles up to 38 deg; (3) a sweep angle/swirl angle correlation exists; and (4) base modifications can significantly reduce the reattachment distance.
- NASA Technical Reports Server (NTRS) Collection.
- Document ID: 19820018734.
Accession ID: 82N26610.
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