Heat transfer and flow around curved corner cylinder: effect of attack angle

被引：0
|
作者：
Talaat Abdelhamid
Ahmed G. Rahma
Md. Mahbub Alam
Rongliang Chen
Md. Islam
Qiang Zhou
Hongjun Zhu
机构：
[1] Menoufia University,Department of Physics and Engineering Mathematics, Faculty of Electronic Engineering
[2] University of Strasbourg,Department of Physics and Engineering
[3] Harbin Institute of Technology (Shenzhen),Center for Turbulence Control
[4] Chinese Academy of Science,Shenzhen Institutes of Advanced Technology
[5] Khalifa University of Science and Technology,Mechanical Engineering Department
[6] Southwest Jiaotong University,Research Center for Wind Engineering
[7] Southwest Petroleum University,State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation
来源：
SN Applied Sciences | 2023年 / 5卷
关键词：
Heat transfer; Vorticity dynamics; Fluid forces; Laminar flow; Curved corner;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The aim of this study is to investigate the fluid flow structure and heat transfer from an isothermal cylinder with a curved corner radius ratio (r/R) of 0.5, and attack angle (α) is varied between 0° ≤ α ≤ 45°. The cylinder is subjected to airflow at a Reynolds number (Re) = 180 and Prandtl number (Pr) = 0.7. This study focuses on the effect of α on the fluid forces, Strouhal number, Nusselt number, and flow structure, and wake bubble size. The sensitivity of the time-mean drag and lift forces is investigated to α, and they appear to be minimum at critical α of 5° and 12°, respectively. The increase of α from 0 to 45° results in about 12.9% enhancement in the heat transfer from the cylinder.
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