Abstract

A complex physicomathematical model of heat transfer in packets of cooled microrocket gas-dynamic planar nozzles used for the pumping of gas-dynamic lasers is presented. A small size (~15 mm), due to which they are quickly heated up and require intense heat removal, is a specific feature of such rocket nozzles. The complex physicomathematical model of heat transfer and gas dynamics, as well as heating and cooling, is new, since all the physical processes are coupled at the boundary of a multiply connected domain. The cooling of high-temperature gas-dynamic lasers is one of the main problems in designing them. Numerical results for gas temperatures, the heat transfer coefficient, and cooler temperatures, as well as temperatures in the critical section of the nozzle, are obtained.

中文翻译：

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一包冷却的微型火箭气动力激光器的热状态

摘要

提出了用于泵送气动激光的冷却的微型火箭气动平面喷嘴中的热量传递的复杂物理数学模型。这种火箭喷嘴的一个特殊特征是体积小（约15毫米），由于它们被迅速加热并需要大量排热。因为所有物理过程都在多重连接域的边界耦合，所以传热和气体动力学以及加热和冷却的复杂物理数学模型是新的。高温气体动力学激光器的冷却是设计它们的主要问题之一。获得了气体温度，传热系数，冷却器温度以及喷嘴关键区域温度的数值结果。