Investigation of Pressure Field Strukture and Vortex Shedding Suppression for Near-Wall Rectangular Cylinders
Bailey, S.C.C. and Haidn, O.J. and Martinuzzi, R.J. (1999) Investigation of Pressure Field Strukture and Vortex Shedding Suppression for Near-Wall Rectangular Cylinders. In: 13th ASCE Engineering Mechanics Division Conference. 13th ASCE Engineering Mechanics Conference, Baltimore MD, USA, June 13-16, 1999.
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Results of simultaneous surface pressure measurements along a wall and cylinder circumference are presented for the flow around a square cylinder in the vicinity of a solid wall at a reynolds number of 20000 (based on the cylinder with D) for wall-to-cylinder gap heights, S, of 0.13D to 1.4D. The pressure field shows distinct characteristics for each of three flow regimes. For S/D 0.6, regular vortex shedding is observed and the wall mean pressure minimum remains fixed 0.8D downstream of the leading edge. The drag and lift coefficients vary little with increasing S/D. For the intermediate range, vortex shedding is intermittent and the pressure distribution varies greatly as a function of S/D. The suppression of vortex shedding is accompanied by a loss of correlation of the pressure signal on the cylinder lateral faces.
|Document Type:||Conference or Workshop Item (Paper)|
|Title:||Investigation of Pressure Field Strukture and Vortex Shedding Suppression for Near-Wall Rectangular Cylinders|
|Journal or Publication Title:||13th ASCE Engineering Mechanics Division Conference|
|Event Title:||13th ASCE Engineering Mechanics Conference, Baltimore MD, USA, June 13-16, 1999|
|Organizer:||The Johns Hopkins University|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Space|
|HGF - Program Themes:||W RP - Raumtransport|
|DLR - Research area:||Space|
|DLR - Program:||W RP - Raumtransport|
|DLR - Research theme (Project):||E -- no assignement|
|Institutes and Institutions:||Institute of Space Propulsion|
|Deposited By:||elib DLR-Beauftragter|
|Deposited On:||16 Sep 2005|
|Last Modified:||06 Jan 2010 13:42|
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