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Numerical simulation of water mitigation effects on shock wave with SPH method

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Abstract

The water mitigation effect on the propagation of shock wave was investigated numerically. The traditional smoothed particle hydrodynamics (SPH) method was modified based on Riemann solution. The comparison of numerical results with the analytical solution indicated that the modified SPH method has more advantages than the traditional SPH method. Using the modified SPH algorithm, a series of one-dimensional planar wave propagation problems were investigated, focusing on the influence of the air-gap between the high-pressure air and water and the thickness of water. The numerical results showed that water mitigation effect is significant. Up to 60% shock wave pressure reduction could be achieved with the existence of water, and the shape of shock wave was also changed greatly. It is seemly that the small air-gap between the high-pressure air and water has more influence on water mitigation effect.

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Authors and Affiliations

  1. Engineering Institute of Corps of Engineers, PLA University of Science and Technology, Nanjing, 210007, China

    Yiming Mao  (毛틦쏷), Qin Fang  (랽 쟘), Yadong Zhang  (헅퇇뚰) & Zhenru Gao  (룟헱죥)

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  1. Yiming Mao  (毛틦쏷)
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  2. Qin Fang  (랽 쟘)
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  3. Yadong Zhang  (헅퇇뚰)
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  4. Zhenru Gao  (룟헱죥)
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Corresponding author

Correspondence to Yiming Mao  (毛틦쏷).

Additional information

Supported by National Natural Science Foundation of China ( No. 50638030 and 50525825) and National Science and Technology Support Program (No.2006BAJ13B02).

MAO Yiming, born in 1969, male, M, lecturer.

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Mao, Y., Fang, Q., Zhang, Y. et al. Numerical simulation of water mitigation effects on shock wave with SPH method. Trans. Tianjin Univ. 14, 387–390 (2008). https://doi.org/10.1007/s12209-008-0066-y

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  • DOI: https://doi.org/10.1007/s12209-008-0066-y

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