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A study on impulsive sound attenuation for a high-pressure blast flowfield

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Abstract

The present work addresses a numerical study on impulsive sound attenuation for a complex high-pressure blast flowfield; these characteristics are generated by a supersonic propellant gas flow through a shock tube into an ambient environment. A numerical solver for analyzing the high pressure blast flowfield is developed in this study. From numerical simulations, wave dynamic processes (which include a first precursor shock wave, a second main propellant shock wave, and interactions in the muzzle blasts) are simulated and discussed. The pressure variation of the blast flowfield is analyzed to evaluate the effect of a silencer. A live firing test is also performed to evaluate four different silencers. The results of this study will be helpful in understanding blast wave and in designing silencers.

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Authors and Affiliations

  1. Ground System Development Center, Agency for Defence Development, 215 Sunam-dong, Yuseong-gu, Daejeon, 305-600, Korea

    Kuk-Jeong Kang

  2. Department of Mechanical Design Engineering, Chungnam National University, 220 Gung-dong, Yuseong-gu, Daejeon, 305-764, Korea

    Sung-Ho Ko

  3. Department of Mechanical Design Engineering, Chungnam National University, 220 Gung-dong, Yuseong-gu, Daejeon, 305-764, Korea

    Dong-Soo Lee

Authors
  1. Kuk-Jeong Kang
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  2. Sung-Ho Ko
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  3. Dong-Soo Lee
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Correspondence to Kuk-Jeong Kang.

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Kang, KJ., Ko, SH. & Lee, DS. A study on impulsive sound attenuation for a high-pressure blast flowfield. J Mech Sci Technol 22, 190–200 (2008). https://doi.org/10.1007/s12206-007-1023-8

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  • DOI: https://doi.org/10.1007/s12206-007-1023-8

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