Abstract
A large-scale free-piston shock tunnel has been built in China Academy of Aerospace Aerodynamics (CAAA). The diameter of the nozzle exit is 2 m and the length is 12.4 m. The large-scale free-piston shock tunnel is called FD-21, which employed three running modes, such as conventional shock tunnel running mode, high-enthalpy shock running mode, and long-time running time mode. Conventional shock tunnel had finished to debug in 2016, which could provide fine flow quality. Calibrated rake and sharp cone model had been measured. High enthalpy shock runing tube is driven by free piston, which is been operating and soon will be accomplished. Next, the main structure of the FD-21 should be changed, shock tube will be divided into two parts, and third diaphragm will be installed between the two parts.
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Shen, J., Ma, H., Li, C., Chen, X., Zhixian, B. (2019). Initial Testing of a 2 m Mach-10 Free-Piston Shock Tunnel. In: Sasoh, A., Aoki, T., Katayama, M. (eds) 31st International Symposium on Shock Waves 2. ISSW 2017. Springer, Cham. https://doi.org/10.1007/978-3-319-91017-8_26
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DOI: https://doi.org/10.1007/978-3-319-91017-8_26
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