射流通道内双侧方柱离散热源的构形设计  

Constructal Design of Double-sided Square Column Discrete Heat Sources in A Jet Channel

作　　者：饶凯 谢志辉[1] 南刚 林道光 陆卓群 戈延林 RAO Kai;XIE Zhihui;NAN Gang;LIN Daoguang;LU Zhuoqun;GE Yanlin(College of Power Engineering,Naval University of Engineering,Wuhan 430033,CHN;School of Energy,Mechanical&Electronic Engineering,Hunan University of Humanities,Science and Technology,Loudi 417000,CHN;Institute of Thermal Science and Power Engineering,Wuhan Institute of Technology,Wuhan 430205,CHN;School of Mechanical&Electrical Engineering,Wuhan Institute of Technology,Wuhan 430205・CHN)

机构地区：[1]海军工程大学动力工程学院,武汉430033 [2]湖南人文科技学院能源与机电工程学院,湖南娄底417000 [3]武汉工程大学热科学与动力工程研究所,武汉430205 [4]武汉工程大学机电工程学院,武汉430205

出　　处：《半导体光电》2022年第1期143-151,共9页Semiconductor Optoelectronics

基　　金：国家自然科学基金项目(51979278,51579244)。

摘　　要：基于构形理论,建立二维射流通道内导热基座上双侧方柱离散热源的散热模型,以离散热源的总纵截面面积和热源高度一定为约束条件,以系统最高温度最小化、温度均匀性因子最小化和温度梯度均匀性因子最小化为目标,以各热源之间的长度比为优化变量,考虑射流速度和热源间距对散热的影响。当热源间距和射流速度给定时,通过改变热源之间的长度比可使系统最高温度、温度均匀性因子和温度梯度均匀性因子不同程度地降低。当热源间距和热源之间的长度比给定时,随着射流速度的增大,系统最高温度、温度均匀性因子和温度梯度均匀性因子亦均不同程度地降低。Based on constructal theory,a heat dissipation model of two-dimensional double-sided square column discrete heat sources on a heat conduction base in a jet channel is established.The total longitudinal section area and the height of the discrete heat sources are set as the constraints,the optimization objectives are as follows:minimizing the maximum temperature,the temperature uniformity factor and the temperature gradient uniformity factor of the system,and the length ratio between each heat source is set as the optimization variable,then the effects of the jet speed and the heat source spacing on heat dissipation are analyzed.When the heat source spacing and jet speed are given,the maximum temperature,the temperature uniformity factor and the temperature gradient uniformity factor of the system can be reduced by changing the length ratio between the heat sources.When the heat source spacing and the length ratio between heat sources are given,with the increase of the jet velocity,the maximum temperature,the temperature uniformity factor and the temperature gradient uniformity factor of the system all decrease at different degrees.

关 键 词：构形理论 电子器件冷却 热设计 流固耦合 广义热力学优化 

分 类 号：TK123[动力工程及工程热物理—工程热物理]