We measure flow and thermal fields over a locally heated two-dimensional hill. The heated sections on the wall are divided into upstream and downstream portions of the hill model. These sections are heated independently, yielding various thermal boundary conditions in contrast to the uniformly heated case. In the separated region formed behind the hill, it is found that the mean temperature profiles in the uniformly heated case are well decomposed into the separately heated cases. This is because the velocity fluctuation produced by the shear layer formed behind the hill is large, so the superposition of a passive scalar in the thermal field can be successfully realized. The rapid increase in the mean temperature near the uniformly heated wall should be due to the heat transfer near the leeward slope of the hill. On the other hand, the mean temperature distributions away from the wall are strongly affected by the turbulent thermal diffusion on the windward side of the hill.
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2010 14th International Heat Transfer Conference
August 8–13, 2010
Washington, DC, USA
Conference Sponsors:
- Heat Transfer Division
ISBN:
978-0-7918-4937-8
PROCEEDINGS PAPER
Turbulent Thermal Diffusion Over a Locally-Heated Two-Dimensional Hill Available to Purchase
T. Houra,
T. Houra
Nagoya Institute of Technology, Nagoya, Japan
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Y. Nagano,
Y. Nagano
Nagoya Industrial Science Research Institute; Nagoya Institute of Technology, Nagoya, Japan
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M. Tagawa
M. Tagawa
Nagoya Institute of Technology, Nagoya, Japan
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T. Houra
Nagoya Institute of Technology, Nagoya, Japan
Y. Nagano
Nagoya Industrial Science Research Institute; Nagoya Institute of Technology, Nagoya, Japan
M. Tagawa
Nagoya Institute of Technology, Nagoya, Japan
Paper No:
IHTC14-23117, pp. 769-775; 7 pages
Published Online:
March 1, 2011
Citation
Houra, T, Nagano, Y, & Tagawa, M. "Turbulent Thermal Diffusion Over a Locally-Heated Two-Dimensional Hill." Proceedings of the 2010 14th International Heat Transfer Conference. 2010 14th International Heat Transfer Conference, Volume 2. Washington, DC, USA. August 8–13, 2010. pp. 769-775. ASME. https://doi.org/10.1115/IHTC14-23117
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