This work describes blowing through the whole surface of a porous circular cylinder for the control of the near wake dynamics and the thermal protection of the surface. The flow past the cylinder is numerically studied and the blowing is modeled. Comparisons with experimental data are used for validation. It is shown that the blowing tends to increase the boundary layer thickness, to promote its separation and to decrease the viscous drag induced. Similarly, the convective heat transfer is lowered, and in the case of a nonisothermal blowing, the surface is very effectively protected from the hot free stream flow. The near wake is also affected. The vortex shedding frequency is shown to decrease when blowing occurs and a qualitative model is presented to identify the different mechanisms.
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June 2002
Additional Technical Papers
The Effect of Uniform Blowing on the Flow Past a Circular Cylinder
Lionel Mathelin,
Lionel Mathelin
Institut National des Sciences Applique´es de Lyon, Centre de Thermique de Lyon, UMR 5008, Ba^t. S. Carnot, 20 av. A. Einstein, 69621 Villeurbanne cedex, France
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Franc¸oise Bataille,
e-mail: daumas@cethil.insa-lyon.fr
Franc¸oise Bataille
Institut National des Sciences Applique´es de Lyon, Centre de Thermique de Lyon, UMR 5008, Ba^t. S. Carnot, 20 av. A. Einstein, 69621 Villeurbanne cedex, France
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Andre´ Lallemand
Andre´ Lallemand
Institut National des Sciences Applique´es de Lyon, Centre de Thermique de Lyon, UMR 5008, Ba^t. S. Carnot, 20 av. A. Einstein, 69621 Villeurbanne cedex, France
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Lionel Mathelin
Institut National des Sciences Applique´es de Lyon, Centre de Thermique de Lyon, UMR 5008, Ba^t. S. Carnot, 20 av. A. Einstein, 69621 Villeurbanne cedex, France
Franc¸oise Bataille
Institut National des Sciences Applique´es de Lyon, Centre de Thermique de Lyon, UMR 5008, Ba^t. S. Carnot, 20 av. A. Einstein, 69621 Villeurbanne cedex, France
e-mail: daumas@cethil.insa-lyon.fr
Andre´ Lallemand
Institut National des Sciences Applique´es de Lyon, Centre de Thermique de Lyon, UMR 5008, Ba^t. S. Carnot, 20 av. A. Einstein, 69621 Villeurbanne cedex, France
Contributed by the Fluids Engineering Division for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received by the Fluids Engineering Division September 25, 2000; revised manuscript received November 3, 2001. Associate Editor: D. R. Williams.
J. Fluids Eng. Jun 2002, 124(2): 452-464 (13 pages)
Published Online: May 28, 2002
Article history
Received:
September 25, 2000
Revised:
November 3, 2001
Online:
May 28, 2002
Citation
Mathelin , L., Bataille, F., and Lallemand, A. (May 28, 2002). "The Effect of Uniform Blowing on the Flow Past a Circular Cylinder ." ASME. J. Fluids Eng. June 2002; 124(2): 452–464. https://doi.org/10.1115/1.1467919
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