Open Access

ARTICLE

CORRELATION FOR TURBULENT CONVECTION HEAT TRANSFER IN ELLIPTICAL TUBES BY NUMERICAL SIMULATIONS

Mo Yang^a,*, Xiaoming Wang^a, Zhiyun Wang^a, Zheng Li^b , Yuwen Zhang^b

a School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai, 20093, China
b Department of Mechanical & Aerospace Engineering, University of Missouri, Columbia, Missouri, MO 65211, USA

* Corresponding Author: Email: .

Frontiers in Heat and Mass Transfer 2018, 11, 1-6. https://doi.org/10.5098/hmt.11.7

Abstract

Turbulent convective heat transfer in an elliptical pipe are investigated numerically in this paper. The RSM model is employed in the simulations of elliptical tubes with different aspect ratio a/b and Reynolds numbers within the range of 10,000~120,000. It is found that the maximum deviation between the numerical result and the one from Dittus-Boelter equation contained a hydraulic diameter is 28.4%. Based on simulation results, the correlation between the Nusselt number and Reynolds number in the fully developed fluid section of the elliptical tube is obtained.

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Keywords

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