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The Underwater Detection of TNT Explosive
IEEE Transactions on Nuclear Science, 2011Tagged neutron inspection system was used for the underwater detection of explosives. Neutrons were produced in the d + t nuclear reaction with API 120 sealed tube neutron generator. Five kilograms of TNT explosive were measured in a pool filled with water. Measurements were done in target in, target out configuration.
Sudac, Davorin +3 more
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Numerical modeling of an underwater explosion for an aluminized explosive
AIP Conference Proceedings, 1998Underwater explosion properties of an aluminized explosive were numerically modeled by two burn techniques; a programed-burn and a reaction rate calibrated from two-dimensional steady-state detonation experiments. The programed-burn technique did not reproduce experimental data well; 33% error in peak pressure of shock wave and 9% error in bubble ...
J. H. Kuk, J. Lee, S-y. Song, Y. S. Cho
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Journal of Pressure Vessel Technology, 1997
A cylinder expansion test for high explosives was carried out to determine JWL parameters. Using the JWL parameters, we carried out numerical simulations of the underwater shock waves generated by the underwater explosion of the high explosives. Our results showed that the behavior of the underwater shock waves at the vicinity of the explosives differs
S. Itoh, Z. Liu, Y. Nadamitsu
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A cylinder expansion test for high explosives was carried out to determine JWL parameters. Using the JWL parameters, we carried out numerical simulations of the underwater shock waves generated by the underwater explosion of the high explosives. Our results showed that the behavior of the underwater shock waves at the vicinity of the explosives differs
S. Itoh, Z. Liu, Y. Nadamitsu
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The Journal of the Acoustical Society of America, 1976
Explosions have been used as underwater acoustic sources for many years, sometimes at rates exceeding 50 000 charges a year. During the past decade the types of studies undertaken with explosion sources have changed in character, and the requirements on charge levels have become more demanding. For example, an accuracy of ±1 dB in narrow-band levels is
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Explosions have been used as underwater acoustic sources for many years, sometimes at rates exceeding 50 000 charges a year. During the past decade the types of studies undertaken with explosion sources have changed in character, and the requirements on charge levels have become more demanding. For example, an accuracy of ±1 dB in narrow-band levels is
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Emission by underwater explosions
Geophysics, 1970Abstract Theoretical and experimental investigations of the seismic effects of underwater explosions of dynamite charges are described. We investigate the acoustic efficiency in a broad frequency band and in the seismic frequency band, the partition of energy between the shock wave and bubble pulses, the seismic effects of cavitation ...
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The behaviour of underwater explosions
1966The general characteristics of underwater explosions have been well established over the past fifty years and a general description of both the experimental and theoretical behaviour of underwater explosions is given by Cole [1], Various theories exist for the analysis of successive phases of an explosion underwater, i.e.
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Low-Energy Underwater Explosions
The Physics of Fluids, 1968Results are presented concerning a theoretical and experimental investigation of low-energy spherical underwater explosions. The theoretical analysis makes use of the explicity hydrodynamic-shock-tube solution, a simple incompressible bubble theory, and its modification which accounts for the finite signal propagation times and the low compressibility ...
L. E. Heuckroth, I. I. Glass
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Multiphase phenomena in underwater explosion
Experimental Thermal and Fluid Science, 2015The paper is devoted to numerical investigations of processes accompanying an underwater explosion near the free surface. A model of evolution of liquid and gas separated by free surface is implemented. The model enables one to take into account cavitation in rarefaction waves propagating through the liquid.
Nikita V. Petrov, Alexander A. Schmidt
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Underwater electrical wire explosion
Plasma Sources Science and Technology, 2010A brief review of the results obtained in recent research of underwater electrical wire explosions using microsecond and nanosecond generators is presented. It was shown that the increase in the rate of energy input into the exploding wire allows one to increase the wire temperature and amplitude of shock waves (SWs).
Ya E Krasik +10 more
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Calculation of powerful underwater explosions
Fluid Dynamics, 1971A finite-difference method of calculating powerful underwater explosions using an artificial viscosity is described. An equation of state valid over a broad range of thermodynamic parameters is used for describing the properties of the water. Relatively weak explosions, where the compressibility of the water can be neglected or taken into account in ...
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