Numerical simulation study on the dynamic evolution characteristics of muzzle shock waves at different altitudes

KANG Yue; MA Tian; WANG Junlong; ZHANG Yizhi; ZHANG Wenbo; HAN Xiao; LI Zhijie

doi:10.11883/bzycj-2024-0108

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KANG Yue, MA Tian, WANG Junlong, ZHANG Yizhi, ZHANG Wenbo, HAN Xiao, LI Zhijie. Numerical simulation study on the dynamic evolution characteristics of muzzle shock waves at different altitudes[J]. Explosion And Shock Waves. doi: 10.11883/bzycj-2024-0108

Citation:

KANG Yue, MA Tian, WANG Junlong, ZHANG Yizhi, ZHANG Wenbo, HAN Xiao, LI Zhijie. Numerical simulation study on the dynamic evolution characteristics of muzzle shock waves at different altitudes[J]. Explosion And Shock Waves. doi: 10.11883/bzycj-2024-0108

Citation:

KANG Yue, MA Tian, WANG Junlong, ZHANG Yizhi, ZHANG Wenbo, HAN Xiao, LI Zhijie. Numerical simulation study on the dynamic evolution characteristics of muzzle shock waves at different altitudes[J]. Explosion And Shock Waves. doi: 10.11883/bzycj-2024-0108

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Numerical simulation study on the dynamic evolution characteristics of muzzle shock waves at different altitudes

doi: 10.11883/bzycj-2024-0108

KANG Yue^1
,,
MA Tian¹,
WANG Junlong^{1, 3},
ZHANG Yizhi²,
ZHANG Wenbo⁴,
HAN Xiao¹,
LI Zhijie^{5
,
,}

1.
Institute of Systems Engineering, Academy of Military Sciences, Beijing 100010, China
2.
School of Aerospace Engineering, Tsinghua University, Beijing 100084, China
3.
School of Physics and Optoelectronics, Xiangtan University, Xiangtan 411105, Hunan, China
4.
School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China
5.
Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China

Received Date: 2024-04-15
Rev Recd Date: 2024-10-15

Available Online: 2024-10-16

Abstract

Abstract

Based on the Euler-Lagrangian coupling method (CEL), a fluid-solid coupling model of gunpowder gas-barrel/cannonball-air is established. Numerical simulations are carried out on the launching process of large-caliber artillery shells in low altitude (altitude 0 m), medium altitude (altitude 1000 m), sub-high altitude (altitude 3000 m) and high altitude (altitude 5000 m) environments, and the comparative studies are conducted on the influence mechanism of altitudes on the dynamic evolution characteristics of muzzle shock waves. The simulation results show that the dynamic evolution process of the muzzle shock wave has significant direction dependence. The peak pressure of the muzzle shock wave will decrease as the altitude increases (namely the ambient pressure decreases), and the decrease of peak pressure is approximately linear to the change of ambient pressure . Increasing altitude will reduce the pressure peak of the muzzle shock wave for the same position (same distance and direction). The lateral muzzle shock wave, formed at the muzzle brake, dominates the pressure peak in the typical operating zone of the artillery operators (3–5 m behind the muzzle). The pressure peak value and effective action time at different altitudes can cause damage to the hearing organs, and induce the threat to the non-hearing organs. Therefore, the protection capabilities of artillery operators’ equipment is urgently needed to be improved, providing the effective protection for the important organs, such as ears, eyes, lungs and brains.
- muzzle shock wave,
- fluid-structure coupling model,
- altitude,
- personal protection

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References(44)

References

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