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Prikladnaya Mekhanika i Tekhnicheskaya Fizika, 2000, Volume 41, Issue 5, Pages 81–90
(Mi pmtf2982)
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This article is cited in 5 scientific papers (total in 5 papers)
Shock-wave structure in the near zone upon explosion of spatial charges in air
A. V. Pinaev, V. T. Kuzavov, V. K. Kedrinskii Lavrent’ev Institute of Hydrodynamics, Siberian Division, Russian Academy of Sciences, Novosibirsk 630090
Abstract:
Profiles and values of pressure in shock waves are determined for the case of spherical, linear, and spatial charges, such as a coil of a bulk spiral and plane annular coils and Archimedes’ spiral of various lenths, exploded in air. In the case of explosion of rings and spirals, a complex wave structure in the form of a sequence of several shock waves is registered near the charges along the spiral axes; a weaker attenuation of shock waves with distance and pressure amplitudes two to three times higher than in the case of a spherical charge of the same mass are observed. It was found that an increase in the length of a plane spiral does not lead to an increase in the maximum pressure in the shock wave at distances of the order of several pitches of the spiral from its plane. With distance from spatial charges of different shape but identical mass, the pressure values in the shock-wave fronts coincide and tend asymptotically to the parameters of a spherical explosion with a significant increase in the duration of a wave packet generated by the spatial charge. Dependences for evaluation of shock-wave pressure amplitudes in the near zone of the explosion are presented.
Received: 23.06.2000
Citation:
A. V. Pinaev, V. T. Kuzavov, V. K. Kedrinskii, “Shock-wave structure in the near zone upon explosion of spatial charges in air”, Prikl. Mekh. Tekh. Fiz., 41:5 (2000), 81–90; J. Appl. Mech. Tech. Phys., 41:5 (2000), 836–844
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