IMECH-IR  > 高温气体动力学国家重点实验室
Alternative TitlePerformance study of a detonation-driven expansion tube
周凯; 汪球; 胡宗民; 姜宗林
Source Publication航空学报
Abstract超高速流动一般指速度超过5 km/s的流动,由于流动具有高焓高速的特点,模拟超高速流动的地面试验设备面临极大挑战。膨胀管(风洞)是少数几种具备超高速流动模拟能力的地面试验设备之一。中国科学院力学研究所高温气体动力学国家重点实验室(LHD)通过将正向爆轰驱动技术和膨胀管结合在一起,建成了可实现最高速度10 km/s超高速试验气流的爆轰驱动膨胀管(JF-16),并开展了典型模型试验。在此基础上对JF-16进行了改造升级工作,为其设计喷管增加了膨胀风洞运行模式,对其性能进行了相关试验测试研究。同时,对膨胀管相关数值方法进行了介绍,并开展数值模拟对试验状态进行辅助诊断和分析。
Other AbstractHypervelocity (above 5 km/s) test flow is the essential test environment to study reentry physics of space vehicles or capsules. To the date, an expansion tube is one of the few qualified test facilities on the ground. A detonation-driven expansion tube (JF-16) has been built at the State Key Laboratory of High-temperature Gas Dynamics in order to generate relatively steady and clean test flow at high enthalpies. A series of typical model tests has been completed in recent years. Test flow at velocities above 10 km/s has been successfully obtained via JF-16 after upgrade. An expansion tunnel nozzle has been designed for the JF-16 facility. Generally, the test time duration of a shock-expansion tube is extremely shorter as compared to a reflected-shock tunnel of the same scale which results in difficulties in the flow measurement and diagnostics. Numerical simulation is a powerful assistant analysis tool for the study of hypervelocity test flow. Calibration tests as well as numerical simulation are conducted to evaluate the performance of the upgraded test facility.
KeywordHypervelocity Detonation-driven Expansion Tube Performance Study Experimental Tests Numerical Simulation
Indexed ByCSCD ; EI
WOS Keywordhypervelocity ; detonation-driven ; expansion tube ; performance study ; experimental tests ; numerical simulation
Funding Organization国家自然科学基金
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Document Type期刊论文
Recommended Citation
GB/T 7714
周凯,汪球,胡宗民,等. 爆轰驱动膨胀管性能研究[J]. 航空学报,2016,37(3):810-816.
APA 周凯,汪球,胡宗民,&姜宗林.(2016).爆轰驱动膨胀管性能研究.航空学报,37(3),810-816.
MLA 周凯,et al."爆轰驱动膨胀管性能研究".航空学报 37.3(2016):810-816.
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