The effects of laminar separation on heat transfer in flow past an elliptic cylinder

2018 3rd International Conference on Insulating Materials, Material Application and Electrical Engineering

材料科学;无线电电子学;电工学

Zhai, Hongyan^1 ; Wang, Zhihui^1 ; Li, Zhongmin^1 ; Li, Qingling^1

College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao, China^1

关键词: Axis ratio;    Elliptic cylinder;    Elliptical cylinder;    Forced convective heat transfer;    Laminar separations;    Local Nusselt number;    Numerical data;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/452/2/022035/pdf
DOI  :  10.1088/1757-899X/452/2/022035

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

This article presents the numerical studies on laminar forced convective heat transfer from two-dimensional elliptic cylinders of various axis ratios (AR). The local Nusselt number contribution on the two parts of elliptical cylinder surface that split up at the separation position is separately studied in detail. The effects of AR and Re on the average Nusselt number above the surface before the separation position and one of behind of the point are separately detailed analysed. The average Nusselt number described with the two items is in good agreement with existing experimental and numerical data.