Direct Numerical Simulation of Turbulent Separated Flow and Heat Transfer Over a Blunt Flat Plate-Reference-Cited by-同舟云学术

Direct Numerical Simulation of Turbulent Separated Flow and Heat Transfer Over a Blunt Flat Plate

Published:2003-09-23 Issue:5 Volume:125 Page:779-787
ISSN:0022-1481
Container-title:Journal of Heat Transfer
language:en
Short-container-title:

Author:

Yanaoka Hideki¹,Yoshikawa Hiroyuki²,Ota Terukazu²

Affiliation:

1. Department of Intelligent Machines and System Engineering, Hirosaki University, 3 Bunkyo-cho, Hirosaki 036-8561, Japan

2. Department of Machine Intelligence and Systems Engineering, Tohoku University, 01 Aramaki-Aoba, Aoba-ku, Sendai 980-8579, Japan

Abstract

Three-dimensional simulation of turbulent separated and reattached flow and heat transfer over a blunt flat plate is presented. The Reynolds number analyzed is 5000. The vortices shed from the reattachment flow region exhibit a hairpin-like structure. These large-scale vortex structures greatly influence the heat transfer in the reattachment region. Present results are compared with the previous three-dimensional calculations at low Reynolds number and it is found that there is no essential difference between two results with respect to the flow structure. The reattachment length is about five plate thicknesses, which is nearly equal to the previous experimental ones. The velocity distributions and turbulence intensities are in good agreement with the experimental data. Further, it is clarified that Nusselt number and temperature distributions greatly depend upon the Reynolds number, though their characteristic behaviors are qualitatively well simulated.

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Link

http://asmedigitalcollection.asme.org/heattransfer/article-pdf/125/5/779/5574682/779_1.pdf

Reference25 articles.

1. Ota, T., and Kon, N., 1974, “Heat Transfer in the Separated and Reattached Flow on a Blunt Flat Plate,” ASME J. Heat Transfer, 96, pp. 459–462.

2. Ota, T., and Narita, M., 1978, “Turbulence Measurements in a Separated and Reattached Flow Over a Blunt Flat Plate,” ASME J. Fluids Eng., 100, pp. 224–228.

3. Ota, T., and Kato, H., 1991, “Turbulent Heat Transfer in a Separated and Reattached Flow Over a Blunt Flat Plate,” Proceedings of The 3rd ASME/JSME Thermal Engineering Joint Conference, J. R. Lloyd and Y. Kurosaki, eds., ASME, Reno, Nevada, 3, pp. 191–196.

4. Ota, T., and Ohi, N., 1995, “Turbulent Heat Transfer in a Separated and Reattached Flow Over a Blunt Flat Plate,” Proceedings of The 4th ASME/JSME Thermal Engineering Joint Conference, L. S. Fletcher and T. Aihara, eds., ASME, Maui, Hawaii, 1, pp. 363–370.

5. Kiya, M., and Sasaki, K., 1983, “Structure of a Turbulent Separation Bubble,” J. Fluid Mech., 137, pp. 83–113.

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