Investigation on Flow-Field Structure of a Cold Shot in Ram Accelerator

SUN Xiao-hui;CHEN Zhi-hua;HAN Jun-li;XUE Da-wen

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    Published By: Journal Of Ballistics

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Journal Of Ballistics ›› 2011, Vol. 23 ›› Issue (4) : 70-74.

Investigation on Flow-Field Structure of a Cold Shot in Ram Accelerator

  • SUN Xiao-hui1, CHEN Zhi-hua1, HAN Jun-li1,2, XUE Da-wen1
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Abstract

To obtain the characteristics of supersonic flow-field and shock wave structure around projectile inside ram accelerator,the two-dimensional compressible Euler equation was solved by using high-order Weighted Essentially Non-Oscillatory(WENO) scheme.By combining Adaptive Mesh Refinement(AMR) technique and Immersed Boundary Method(IBM),the experiment in ram accelerator under the cold shot condition was numerically simulated.The result shows that the flow structure and shock wave structure inside ram accelerator under the cold shot condition can be shown clearly.The simulation results agree well with corresponding experimental results.The hypersonic flowfield and shock waves inside the ram accelerator were captured.The generation and development of shock waves and relative parameters around the projectile were presented.The study offers reference for the cold launch experiment of ram accelerator.

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WENO scheme / ram accelerator / cold shot / shock wave

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SUN Xiao-hui, CHEN Zhi-hua, HAN Jun-li,, XUE Da-wen. Investigation on Flow-Field Structure of a Cold Shot in Ram Accelerator. Journal Of Ballistics. 2011, 23(4): 70-74

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