The Structure of the Reynolds Stress in a Turbulent Boundary Layer.

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Abstract:

Experimental studies of the structure of the Reynolds stress in a turbulent boundary layer on a smooth wall with zero pressure gradient are reported. The technique of conditional sampling is employed to study the signal, uv, obtained from hot wire probes in a x configuration. Measurements of the mean time intervals and durations of burst and sweeps are attempted. In the conditional sampling method the velocity at the edge of the viscous sublayer is used as a detector of bursts and the signal, uv, is obtained at various locations. Velocity is studied in relation to bursts and sweep events. Author

Author(s):
Lu, Shui-shong ; Willmarth, William W.
Author Organization(s):
MICHIGAN UNIV ANN ARBOR GAS DYNAMICS LABS
Descriptive Note:
Technical rept.,
Pagination:
0133

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
021490-2-T
Contract/Grant Number(s):
N00014-67-A-0181-0015
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
(*TURBULENT BOUNDARY LAYER, *STRESSES), WALLS, SURFACE PROPERTIES, VELOCITY, TIME, FLOW FIELDS, FLOW VISUALIZATION, WIND TUNNEL MODELS, MODEL TESTS, FLOW VISUALIZATION, PITOT TUBES, ANEMOMETERS
Field(s)/Group(s):
Fluid Mechanics
Keyword(s):
*REYNOLDS STRESS, SMOOTH WALLS, HOT WIRE ANEMOMETRY, PROFILES, VELOCITY
Report Date:
1972 Oct 01