Research Of Heat Transfer Characteristic Of Air Cold Plate In Electronic Cabinet

Air cold plate because of the high heat transfer performance and compact structure, has became a very important radiator in electronic equipment, and make more and more the research for it in the recent years. Previously, the research of fin of air cold plate is mainly theoretical and experimental at home and abroad, by calculating performance parameters of various fins with a large number of comparative analyses. At present, with the computational fluid dynamics are applied widely and deeply, especially for the simulation of various practical problems. The numerical simulation software will be more quickly and more intuitively to get the calculation result. It makes simulation software to be one of important engineering design and research tools. Therefore, this article takes three different types of fin structure of air cold plate as the research object, and analyses the procession of heat transfer and fluid by the method of numerical simulation.Firstly, the heat transfer and flow of cold plate of rectangular fin is analyzed by numerical simulation, to get the experimental correlation which predict the heat transfer and pressure drop performance of cold plate. And obtain the effects of structure size of cold plate on heat transfer characteristic by range analysis of the calculation result. Secondly, the cold plate of vertical rectangle fin is researched for heat transfer characteristic on the electronic equipment cabinet. The method of equivalent model instead of cold plate is proposed in the simulation software. Comparing with cold plate, the results of equivalent model prove that can replace the cold plate in thermal design and reduce the calculation time. Finally, in the thermal design of a radar transmitter cooling channels, the fins of cold plate are analyzed for the structure optimization, and the optimal structure of cold plate is determined by numerical simulation methods.