论文部分内容阅读
本文应用多物理场耦合计算软件COMSOL对离子风作用下强化平板对流换热的过程进行了数值模拟.研究了空气在高压电场下的对流换热现象,得到线-板电极模型相应的流场和温度场分布,并与文献中的实验结果进行了对比,验证了多物理场耦合数值方法的准确性。通过研究不同电压下传统风扇风冷、离子风和离子风与风扇共同作用下的对流换热系数变化规律,发现空气放电强化传热较传统方式有明显优势。还研究了不同极板距与板长比和不同板长情况下对流换热系数的变化规律.
In this paper, multi-physics coupling calculation software COMSOL is used to simulate the convective heat transfer enhancement under the action of ionized air.The convection heat transfer phenomenon of air under high voltage electric field is studied, and the corresponding flow field of the wire-plate electrode model and The temperature field distribution is compared with the experimental results in the literature to verify the accuracy of the coupled numerical method of multiphysics. By studying the variation law of the convection heat transfer coefficient under the common voltage, the convection heat transfer coefficient under the combined action of air fan, ion wind, ion wind and fan, it is found that air discharge enhanced heat transfer has obvious advantages over the traditional method. The law of convection heat transfer coefficient under different plate-to-plate length ratio and plate length was also studied.