METHOD FOR SUPPRESSING THE EXPLOSIVE PLUME OF AN UNDERWATER EXPLOSION Russian patent published in 2023 - IPC F42D5/45 F42B35/00 

FIELD: charge explosion.

SUBSTANCE: method for suppressing the explosive plume of an underwater explosion belongs to the technique of blasting and can be used in tests related to the use of underwater explosions. The method is based on the detonation of a system of two explosive charges - the main and additional. The charges are placed along the vertical passing through their centers, the additional charge, which is smaller in mass, is set below the main one and is undermined first. As a result, before the explosion of the main charge, a low-pressure gas cavity is formed in the water, simulating the free surface, which is located closer to the main charge than the free surface of the water. During the explosion of the main charge, a fluid is formed, which does not move upwards towards the free surface of the water area, but downwards - towards the center of the gas bubble from the explosion of the additional charge. The fluid, passing through the gas cavity with low pressure, is reformed into a fan-shaped, finely dispersed water-gas flow, the energy of which is extinguished by the underlying mass of water.

EFFECT: no explosive plume is formed.

1 cl, 2 dwg