反应堆压力容器支座“流．固”耦合分析及优化设计

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反应堆压力容器（RPV）支座在核电厂设计中起到支承RPV的作用，属ASME核安全1级支承，是关系到核电厂安全的重要设备。采用响应面法实验设计，结合建立的RPV支座“流-固”耦合模型，系统分析支座中竖板开孔位置和入口空气流速对支座温度场和空气流场的影响规律：进一步面向支座底面最高温度限制和减小中竖板开孔应力集中的双目标要求，获得了优化的中竖板开孔位置和入口空气流速，为RPV支座结构设计和入口空气流速选择提供了指导。

The RPV support is one of the most important equipment having effect on the safety of nuclear power plant. It is required that the temperature of concrete that contacts with the bottom surface of RPV support should not exceed 93.3℃. Based on experiment design of Response Surface Method, the effects of inlet air velocity and hole position of middle vertical plate on the highest temperature of support bottom were investigated on the developed iluid-solid coupling CFD model. Furthermore, taking both support bottom temperature and support stress concentration into consideration, the optimal value of inlet air velocity and hole position of middle vertical plate was achieved.

RPV支座，“流-固”耦合，响应面法，流场，温度场，RPV support： fluid-solid coupling，response surface method。

反应堆压力容器支座“流．固”耦合分析及优化设计。