Wave dynamics in a bubbly liquid during the synthesis of gas hydrate

• Published in: Journal of physics. Conference series 2021-04, Vol.1889 (2), p.22118
• Main Authors: Chiglintseva, A S, Nasyrov, A A, Chiglintsev, I A
• Format: Article
• Language: English
• Subjects: Bubbles; Dichlorodifluoromethane; Elastic waves; Gas hydrates; Greenhouse effect; Mathematical models; Physics; Shock waves; Synthesis; Wave propagation
• ISSN: 1742-6588; 1742-6596
• DOI: 10.1088/1742-6596/1889/2/022118

In this work, on the basis of the equations of a bubbly liquid, a numerical simulation of the process of propagation of pressure waves of moderate amplitude, accompanied by the synthesis of gas hydrate in water with gas bubbles Freon-12, was carried out. The dynamics of plane-one-dimensional shock waves with a stepped profile, the volumetric gas content of the gas in the gas-liquid medium, and the average density of the gas hydrate are shown. The situation is considered when in the initial state of the bubble mixture hydrate formation does not occur, but when exposed to a shock wave, due to an increase in pressure in the bubbles and their fragmentation, favorable conditions for hydrate formation are created at the interface. Also, the use of gas hydrate synthesis technologies creates prerequisites for solving the problem of the greenhouse effect on the planet, and hence the climate. One of the solutions may be an increase in the interphase surface upon contact between water and hydrate-forming gas. Some theoretical calculations based on the model of gas hydration behind the pressure wave are presented.