Bluff Body Edge Effect on Pressure-Hill and Zone of Influence

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Effect of the edge geometry on the pressure-hill height and influcne zone expanse for flow past a flat plate was studied in a water flow channel. The results show that, for Reynolds number below 1500 there is twin vortex just downstream the plate, from Re = 1500 to 2500 the flow behind the plate transits to become a wake. In the range of Reynolds number over which the twin vortices formed at the base of the plate transits to the wake, both the pressure-hill height and influence-zone width increase steeply. For Reynolds number below this range the edge shape effect on pressure-hill and inlfunce-zone are only marginal. At all Reynolds numbers in the range from 1000 to 3000, the influence of flat edge is significantly higer than the sharp and semi-circular edges
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Pressure-Hill; Influence Zone; Reynolds Number; Vortex; Bluff Body

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Rathakrishnan E, “Effect of Splitter Plate on Bluff Body Drag”, AIAAJournal (1999), Vol.37, No. 9, pp. 1125-1126.

Takama, Y, Suzuki, K. and Rathakrishnan E, “Twin Vortices Behind aFlat Plate”,Journal of Visualization, Vol. 10, No. 2, 2007, p. 249.

Yasumasa Watanabe, Kojiro Suzuki and Ethirajan Rathakrishnan, “Pressure-hill and Zone of Influence over Flat-Faced Bluff Bodies”, Int. J. TurboJet Engines, Vol. 28 (2011), pp. 329–333, DOI: 10.1515/tjj.2011.067.

Rathakrishnan E, “Visualization of the Flow Field Around a Flat Plate”, IEEE Instrumentation and Measurement Magazine, Vol. 15, No.6, 2012,pp. 8-12, DOI: 10.1109/MIM.2012.6365535.

Hassan, H.Z., Gobran, M.H., Abd El-Azim, A., Simulation of a transonic axial flow fan of a high bypass ratio turbofan engine during flight conditions, (2014) International Review of Aerospace Engineering, 7 (1), pp. 17-24.


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