Heat transfer measurement has been done for the low speed channel flow with an insertion of a rotation circular cylinder near the channel wall in order to find the ways to achieve the dynamic control of the wall heat transfer. It was found that the cylinder rotation was quite effective to achieve large heat transfer enhancement including the power loss required for the cylinder rotation. Counter clockwise rotation (the direction to accelerate the gap flow) intensifies the motion of the unsteady vortex shed from the cylinder and this enhances the wall heat transfer over relatively long downstream area of the cylinder. Heat transfer enhancement becomes large as the rotation speed becomes higher and then shows the largest at a certain rotation speed. On the other hand, clockwise rotation (decelerate the gap flow) suppresses the vortex formation and decreases the heat transfer at low speed rotation. However, high speed rotation induces the fast flow approaching near the wall and can achieve large heat transfer there.
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ASME/JSME 2011 8th Thermal Engineering Joint Conference
March 13–17, 2011
Honolulu, Hawaii, USA
Conference Sponsors:
- Heat Transfer Division
ISBN:
978-0-7918-3892-1
PROCEEDINGS PAPER
Heat Transfer Enhancement by Means of a Rotation Cylinder Available to Purchase
Daiki Hirawa,
Daiki Hirawa
Doshisha University, Kyoto, Japan
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Kyoji Inaoka,
Kyoji Inaoka
Doshisha University, Kyoto, Japan
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Mamoru Senda
Mamoru Senda
Doshisha University, Kyoto, Japan
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Daiki Hirawa
Doshisha University, Kyoto, Japan
Kyoji Inaoka
Doshisha University, Kyoto, Japan
Mamoru Senda
Doshisha University, Kyoto, Japan
Paper No:
AJTEC2011-44266, T10088; 7 pages
Published Online:
March 1, 2011
Citation
Hirawa, D, Inaoka, K, & Senda, M. "Heat Transfer Enhancement by Means of a Rotation Cylinder." Proceedings of the ASME/JSME 2011 8th Thermal Engineering Joint Conference. ASME/JSME 2011 8th Thermal Engineering Joint Conference. Honolulu, Hawaii, USA. March 13–17, 2011. T10088. ASME. https://doi.org/10.1115/AJTEC2011-44266
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