Wall-layer eruptions in turbulent flows
- Walker, J. D. A.
- Sep 1, 1989.
- Physical Description:
- 1 electronic document
- Restrictions on Access:
- Unclassified, Unlimited, Publicly available.
- The near-wall region of a turbulent flow is investigated in the limit of large Reynolds numbers. When low-speed streaks are present, the governing equations are shown to be of the boundary-layer type. Physical processes leading to local breakdown and a strong interaction with the outer region are considered. It is argued that convected vortices, predominantly of the hairpin type, will provoke eruptions and regenerative interactions with the outer region.
- NASA Technical Reports Server (NTRS) Collection.
- Document ID: 19900001934.
Accession ID: 90N11250.
- No Copyright.
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