一种新型冷却循环通道内水的热驱动数值分析

以数值模拟的方法研究了一种可以运用于电子器件冷却的新型冷却结构和理论，即利用彻体力场下封闭循环通道内流体的热驱动来强化换热，在需要冷却的地方，构造一个循环封闭通道，一端加热，一端冷却，通过封闭通道内流体的热驱动实现循环换热。主要研究了在定热流加条件下，改变通道的宽度对流体的流动和换热的影响，重点分析了流体在循环通道仙的热驱动流动和换热特性，研究结果表明，几何尺寸对流体的热驱动流动和换热影响很大，在通道高度一定的条件下，存在着最佳管径，时流体的换热效果最好，本文的研究内容对于高密度封 设计有着较好的参考价值。

Simulation of Thermal Driving Water in Circular Region Used in High Power Density Electronic Systems

A numerical simulation is carried out to investigate thermal driving of water in a circular channel used in high power density electronic systems. The new theory and the equipment are used to construct a circular channel heated in one side and cooled in another side, using the thermal driving of water to enhance the heat transfer rate. This paper studies the heat transfer and fluid flow varying with the width of channel d while the surface heat flux is constant. Results show that the geometry size effects the thermal driving greatly and there exist the best width d . All the results are useful in the future design of high power density electronic systems.