The heat transfer characteristic and flow structure of fluid in the rectangular channel with different height vortex generators in small scale are investigated with numerical simulation. Meantime, the properties of heat transfer and flow of fluid in the rectangular channel are compared with the channel which located small scale vortex generator. The variation law of local heat transfer and flow structure in channel is obtained. The mechanism of heat transfer enhancement of small scale vortex generators is discussed in detail. It is found that the influence of vortex generator on heat transfer is not in proportion to the size of vortex generator. What is more, turbulent flow structure near the wall, which influences the temperature distribution near the wall, induces the variety of local heat transfer. The fluid movement towards to the wall causes the heat transfer enhanced. On the contrary, the fluid movement away from the wall decreases the local heat transfer.
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ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer
December 18–21, 2009
Shanghai, China
Conference Sponsors:
- Nanotechnology Institute
ISBN:
978-0-7918-4391-8
PROCEEDINGS PAPER
Numerical Investigation of Heat Transfer Enhancement on a Small Scale Vortex Generator
Jiansheng Wang,
Jiansheng Wang
Tianjin University, Tianjin, China
Search for other works by this author on:
Zhiqin Yang
Zhiqin Yang
Tianjin University, Tianjin, China
Search for other works by this author on:
Jiansheng Wang
Tianjin University, Tianjin, China
Zhiqin Yang
Tianjin University, Tianjin, China
Paper No:
MNHMT2009-18231, pp. 143-148; 6 pages
Published Online:
October 26, 2010
Citation
Wang, J, & Yang, Z. "Numerical Investigation of Heat Transfer Enhancement on a Small Scale Vortex Generator." Proceedings of the ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer. ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer, Volume 3. Shanghai, China. December 18–21, 2009. pp. 143-148. ASME. https://doi.org/10.1115/MNHMT2009-18231
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