Badanie parametrów fali uderzeniowej powstającej przy wytwarzaniu aerozolu wodnego metodą wybuchową

W artykule przedstawiono wyniki badań parametrów fali uderzeniowej powstającej przy wytwarzaniu aerozolu wodnego metodą wybuchową.

The paper presents results of investigations of parameters of the shock-wave generated in the process of explosive formation of water-spray. The spray was produced by exploding a charge located inside a hag fitled with water (called shortly water-bag). The measurements have been carried on for three kinds of explosive materials (Emulinit, Saletrol and Plastic), for three sizes of the water-bag (600 dm3, 1200 dm3 and 1500 dm3) and for explosion energies varying from 4 MJ to 20 MJ. The experimental setup consisted of the water-bag hung 10 m over the ground, of a fast video-camera registering expansion of the water-spray cloud, and of piezoelectric sensors placed along the direction of the shock-wave propagation that were coupled on-line with a registering-controlling computer system. The objective of the investigations consisted in measuring the shock-wave propagation velocity and pressure variation as well as determining expansion velocity of the cloud as a function of its diameter for various explosive energies, water-bag sizes and explosive material used. The measurements served as a test for verification of theoretical hypotheses concerning explosive production and expansion of the water-spray cloud. The tests allowed to optimize the water-bag size, the kind of explosive material and the explosion energy from the point of view of maximizing cloud's diameter and minimizing droplets' radii.