Numerical Analysis on Convection Heat Transfer in a Spirally Fluted and Field Synergy Principle Analysis

Jiu Yang Yu; Wen Hao Yang; Yan Yang Wu; Wei Lin; Li Jun Liu; Qian Liu

doi:10.4028/www.scientific.net/AMR.308-310.1410

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 308-310Numerical Analysis on Convection Heat Transfer in...

Numerical Analysis on Convection Heat Transfer in a Spirally Fluted and Field Synergy Principle Analysis

Abstract:

By numerical simulation computation, after passing the pulsating flow, enhanced heat transfer mechanism in spirally fluted tubes was researched. Numerical result shows that pulsating flow can cause the outlet pressure to fluctuate cyclical and the extent of fluctuation increases with the pulsating flow frequency. The pulse flowing can make the fluid generate the whirlpool nearby the spirally fluted tubes and the phenomenon of periodic production, drift, and fall-off appears. Because of the vortex, the fluid motion and relative motion are enhanced. The pulse flowing can improve the coordination level between velocity and temperature, thus has strengthened the heat transfer effect.

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Periodical:

Advanced Materials Research (Volumes 308-310)

Pages:

1410-1415

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.308-310.1410

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Online since:

August 2011

Authors:

Jiu Yang Yu, Wen Hao Yang, Yan Yang Wu, Wei Lin, Li Jun Liu, Qian Liu

Keywords:

Enhanced Heat Transfer, Field Synergy Principle, Pulsating Flow, Spirally Fluted Tubes

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