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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 1 to 10 of 111 (0.045 seconds)Spelling suggestions: "subject:"anemometer A""
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Measurments of Turbulent Structures Over a Canopy Using Split Film AnemometrySmyth, Carolyn January 1995 (has links)
Note:
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| 2 |
A study of Doppler global velocimetry in its application to aerodynamic flowsThorpe, Steven J. January 1996 (has links)
No description available.
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| 3 |
Effect of suction on the evolution of laminar boundary layers, including the development of acoustic and LDA transition detection techniquesRickards, Jeremy January 1994 (has links)
No description available.
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A study of the turbulent flow of a high speed Coanda jetCutbill, Sue January 1998 (has links)
This thesis presents an experimental investigation into a compressible turbulent wall jet issuing from a slot, and flowing over a surface with streamwise curvature, followed by a plane wall recovery region. The purpose of this data was to provide suitable test cases to aid in the design and validation of turbulence models used for curved flow situations in computational fluid dynamics. The presence of streamwise curvature provides an extra rate of strain to the flow which effects both the mean flow field and the turbulence structure. The effects of curvature are dependent on the ratio of the slot width to the radius of curvature. The effects are increased with the magnitude of this ratio. Hot film anemometry was used to measure the mean flow and Reynolds stresses under six different flow regimes. Four experiments were performed using a constant slot to radius ratio, and the supply pressure ratio was varied. Two further experiments were performed at a constant pressure ratio, but at differing slot to radius ratios. In all cases, the extra rate of strain was found to increase the jet growth and velocity decay rates beyond those of a plane wall jet. 'History effects' were apparent where there was a change from flow with streamwise wall curvature to that without. The turbulence structure was found to require a finite distance along the recovery section before it reverts to a plane wall turbulence structure. The presence of the extra rate of strain, and the history effects at sudden changes in surface curvature, make strong demands on any turbulence model. Various turbulence models have been tested, and although no one turbulence model has proved robust enough for all flow situations, a number of models have been identified to provide superior performance under certain conditions. The use of a higher order numerical scheme has also been found to reduce the effects of numerical diffusion, leading to improvements in the predictions of the flow shock cell structure and the breakaway performance of the jet.
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The recovery of flow characteristics from particle image velocimetry recordingsOwens, Edward Hugh January 1990 (has links)
No description available.
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Advance LDA techniques for measurement of 3D boundary layer velocity profiles on a helicopter rotorSwales, Christopher January 1994 (has links)
No description available.
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| 7 |
Computing and measuring the flowfield in a de-oiling hydrocycloneHargreaves, John H. January 1990 (has links)
No description available.
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| 8 |
Laser-based measurements of two-phase flashing propane jetsAllen, John Thomas January 1998 (has links)
No description available.
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| 9 |
Computational and experimental studies of flow through a plate valveNasr, Ahmed January 1993 (has links)
No description available.
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| 10 |
Development of laser scattering techniques to measurement of particlesLin, Shi Mu January 1996 (has links)
No description available.
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