• CN：11-2187/TH
• ISSN：0577-6686

• 可再生能源与工程热物理 •

### 新型单圆锥体热沉单孔射流散热数值模拟*

1. 1. 合肥工业大学科学技术研究院 合肥 230009
, 2. 合肥工业大学机械工程学院 合肥 230009
• 出版日期:2016-12-15 发布日期:2016-12-15
• 作者简介:

马鹏程，男，1992年出生。主要研究方向为强化换热。

E-mail：tyfmpc@hfut.edu.cn

唐志国(通信作者)，男，1978年出生，博士，副教授。主要研究方向为强化换热、电动汽车热管理。

E-mail：tzhiguo@hfut.edu.cn

• 基金资助:
* 国家科技支撑计划(2014BAG06B02)和合肥市自主创新政策 (KX201506230108)资助项目; 20160510收到初稿，20161117收到 修改稿;

### Numerical Simulation of Characteristic of Heat Transfer for Jet Impingement with New Single Cone Heat Sink through Single Spray Nozzle

MA Pengcheng1, TANG Zhiguo1,2, LIU Qingqing2, WANG Yuanzhe2

1. 1. Institute of Science and Technology， Hefei University of Technology， Hefei 230009
, 2. School of Mechanical Engineering， Hefei University of Technology， Hefei 230009
• Online:2016-12-15 Published:2016-12-15

Abstract:

Jet cooling is one of effective ways to transfer the great flux density heat, and the heat sink shape of jet impingement is a key point affecting heat transfer. The new cone heat sink proposed is numerically simulated by using RNGk-ε turbulence model under the condition of jet impingement through a single spray nozzle and the result is verified by experiments. The result indicates that the cooling effect of heat sink with a single cone is better than that of usual flat plate heat sink, and when compared with the latter, the former has an additional transition region where is a secondary impingement which strengthens the heat transfer. The greater theRe number becomes, the better effect of the cone heat sink will be; the numerical simulation about different cone angle (15°-60°) of heat sinks shows that 45° cone angle of heat sink provides a higher value of number than the others; whend1 (diameter and conical bottom) /d (jet diameter) is 1-3, and whend1/d is about 2.5, it gets a higher value of number compared to the others; whenH (height of the jet) /d is 5, nothing about the cooling effect of heat sink is so good as thatH/d is about 5.