|
Calculation of shock waves in an explosion of a liquid gas pressure reservoir
S. E. Yakush Institute for Problems in Mechanics, Russian Academy of Science, 119526, Moscow, Russia
Abstract:
Rapid phase transitions occurring with a sharp increase in a specific volume can be accompanied by explosive gas-dynamic phenomena. A model is presented for calculating shock waves generated in the atmosphere during an explosion of a liquid gas pressure reservoir, based on the assumption of a thermodynamically equilibrium state of a vapor-liquid mixture in which both vapor and liquid have equal velocities and are in a state of saturation at local pressure. The spherically symmetric scattering of a boiling liquid cloud is calculated, pressure profiles under various initial conditions are compared, and the primary shock wave parameters are validated according to the results of available experimental data. Two-dimensional calculations of shock waves during the fracture of a cylindrical tank near the underlying surface at various degrees of filling are presented.
Keywords:
explosion of expanding vapors, shock wave, fast phase transition, numerical simulation.
Received: 09.02.2020 Revised: 19.02.2020
Citation:
S. E. Yakush, “Calculation of shock waves in an explosion of a liquid gas pressure reservoir”, Fizika Goreniya i Vzryva, 56:4 (2020), 83–92; Combustion, Explosion and Shock Waves, 56:4 (2020), 444–453
Linking options:
https://www.mathnet.ru/eng/fgv697 https://www.mathnet.ru/eng/fgv/v56/i4/p83
|
Statistics & downloads: |
Abstract page: | 20 | Full-text PDF : | 5 |
|