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固体火箭发动机喷管两相流动下的热固耦合研究

Yu LI, Guangyi CHENG,Zongyang LI,Yibin DOU, Junting JIANG

Air&Space DEFENSE(2020)

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Abstract
考虑喷管各部分结构的传热特性和力学特性,结合喷管内颗粒流动情况,分析高温下喷管热变形的变化规律.结果 表明:喷管结构对流固交界面及内部交界面处的温度有较大的影响;喷管的总变形量和轴向变形量沿轴向逐渐增大,在尾部达到最大值,径向变形量沿轴向先增大后减小再增大,在尾部达到最大值;两相流动使喷管的变形量增大.
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