Numerical Simulation of Cavitation Flow Field in Venturi Gas-liquid Mixer
This article uses the standard k-ε model and Zwart-Gerber-Belamri cavitation model to numerically analyze the cavitation flow field cloud map,steam volume fraction,and cavitation number inside the Venturi gas-liquid mixer.The influence of inlet pressure,temperature,and intake flow rate on the cavitation flow field inside the gas-liquid mixer is explored.The results show that when the outlet pressure is constant,as the inlet pressure increases,the cavitation area becomes larger,the pressure at the suction hole decreases,and the intake volume increases.The intake flow rate has a significant impact on the cavitation effect,and the cavitation intensity is inversely proportional to the intake flow rate.As the intake flow rate continues to increase,the cavitation core area decreases,and maintaining a high cavitation intensity requires a smaller intake volume.