Numerical simulation of gas-liquid interface in high-pressure water-blowing chamber

Abstract

The load on the water chamber increases with the pressure level and blowing rate of the system, and the demand for theoretical and experimental studies related to the quantitative parameters of water chamber blowing safety becomes more and more frequent. In this paper, CFD computational fluid dynamics method is used to carry out the dynamics modeling and simulation of three-dimensional non-constant gas-liquid two-phase internal flow field of the test water chamber and the actual water chamber blowdown process to obtain the dynamic distribution of flow parameters in the water chamber under different working conditions. The results found that to ensure the safety of the water tank, as long as to ensure that the high-pressure air into the water tank at the end of the first two stages, the “bubble” movement process always does not interfere with the bulkhead, you can ensure that the high-pressure air in the water tank in the free expansion and gravity floating state, the water tank pressure will be only slightly higher than “gas - water cross-section” of the static pressure, at this moment the water chamber safety.