Measurements in the Turbulent Boundary Layer at Constant Pressure in Subsonic and Supersonic Flow. Part 2. Laser-Doppler Velocity Measurements
Experiments have been carried out using laser-Doppler velocimetry in conjunction with Pitot and surface-friction instrumentation for the measurement of the mean flow, the velocity fluctuations, and the Reynolds stresses in turbulent boundary layers at constant pressure in subsonic and supersonic flo...
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| creator | Dimotakis, Paul E Collins, Donald J Lang, Daniel B |
| description | Experiments have been carried out using laser-Doppler velocimetry in conjunction with Pitot and surface-friction instrumentation for the measurement of the mean flow, the velocity fluctuations, and the Reynolds stresses in turbulent boundary layers at constant pressure in subsonic and supersonic flows. Part I of this work was a detailed analysis of the mean flow as observed using Pitot-tube, Preston-tube, and floating-element balance instrumentation. The present work (Part II) is a description of both the mean and the fluctuating components of the flow, and of the Reynolds stress as observed using a dual forward-scattering laser-Doppler velocimenter. A detailed description of the instrument, and of the data analysis techniques, have been included in order to fully document the data. A detailed comparison is made between the laser-Doppler results and those presented in Part I, and an assessment is made of the ability of the laser-Doppler velocimeter to measure the details of the flows involved.
See also Part 1, ADA053790. |
| format | Report |
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See also Part 1, ADA053790.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | DATA BASES DOPPLER EFFECT EXPERIMENTAL DATA Fluid Mechanics LASER VELOCIMETERS PE65807F PITOT TUBES PRESSURE MEASUREMENT PRESTON TUBES REYNOLDS NUMBER SCALING FACTOR SHEAR STRESSES SIMILARITY THEORY SUBSONIC FLOW SUPERSONIC FLOW TURBULENT BOUNDARY LAYER |
| title | Measurements in the Turbulent Boundary Layer at Constant Pressure in Subsonic and Supersonic Flow. Part 2. Laser-Doppler Velocity Measurements |
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