Influence of Different Gas Phase-inlet Flow Rate on Flow Field Characteristics of G-LIST
1. School of Mechanical and Electrical Engineering, Wuhan Institute of Technology, Wuhan 430073, China;
2. Wuhan Xinrui Ze Technology Company Limited, Wuhan 430000, China
Abstract In order to improve the gas-liquid impinging stream reactor (G-LISR) mixing performance and find the operating parameters of the appropriate gas inlet flow rate, a mathematical model of G-LISR Gas-Liquid two-phase flow which based on the Euler-Lagrangian method was established by using the Geometry module in ANSYS Workbench. The numerical simulation software Fluent analysis was used to simulate the distribution characteristics of flow field in the reactor under the conditions of different distance of 400 mm between the two opposed accelerating tubes, liquid inlet rate of 5m/s and three different gas inlet speed (10, 15, 20 m/s). The simulation results showed that with the increase of the initial velocity of the gas inlet, the turbulence intensity in G-LISR increased and the pressure increased sharply with the fluctuation at the center of the collision surface. With the increase of the initial gas-inlet velocity, both the concentration distribution of liquid particles and the liquid phase residence time in the reactor will be reduced. From the perspective of energy loss and gas-liquid two-phase mixing effect, the initial gas inlet flow rate should not be too large and 10 m/s was better.
Jiang Zhanxiang 1,Xu lei 1,Xiang Dong 1 et al. Influence of Different Gas Phase-inlet Flow Rate on Flow Field Characteristics of G-LIST[J]. 化学反应工程与工艺, 2017, 33(3): 227-235.
Jiang Zhanxiang 1,Xu lei 1,Xiang Dong 1 et al. Influence of Different Gas Phase-inlet Flow Rate on Flow Field Characteristics of G-LIST[J]. 化学反应工程与工艺, 2017, 33(3): 227-235.
