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Numerical investigation of the starting process in a long-test-duration hypersonic shock tunnel
Wang YP(汪运鹏); Hu ZM(胡宗民); Liu YF(刘云峰); Jiang ZL(姜宗林)
Source Publication22nd AIAA Computational Fluid Dynamics Conference
Conference Name22nd AIAA Computational Fluid Dynamics Conference, 2015
Conference DateJune 22, 2015 - June 26, 2015
Conference PlaceDallas, TX, United states
AbstractThe starting process of the flow in an expansion nozzle (nominal Mach number 6) with the outlet diameter of 1.5m and the 8.9m length, which is used for a large-scale hypersonic shock tunnel in LHD, was simulated and analyzed at incident Mach number Ms= 3.9. The calculating domains include the driven section (the shock tube end, about 4.8 m length), the nozzle with about 8.9 m length, and the part of test section (more than 3 m). The characteristics of unsteady nozzle flow, including the shock wave patterns in the nozzle inlet region and inside the nozzle, were analyzed numerically in the viscous and inviscid flow regimes, respectively. The pressure and Mach number results were presented and discussed by comparing to the experimental findings, where the simulated results of the reflected shock wave in the shock tube and the transmitted shock wave inside the nozzle, are found to agree well with the test data. Additionally, the case without a contraction section for the throat configuration was also calculated and compared with the case with ones. The effect of the starting flow in these two cases on the flowfield uniformity was discussed in detail in this paper. © 2015, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.
KeywordInviscid Flows Numerical Investigations Outlet Diameters Reflected Shock Waves Simulated Results Starting Process Transmitted Shock Unsteady Nozzle Flow
Indexed ByEI
Document Type会议论文
Recommended Citation
GB/T 7714
Wang YP,Hu ZM,Liu YF,et al. Numerical investigation of the starting process in a long-test-duration hypersonic shock tunnel[C]22nd AIAA Computational Fluid Dynamics Conference,2015.
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