Momentum Source Approach for Simulation of Flow in Stirred Tank Reactor

Abstract

Mixing or agitation the liquid in the tank mixer is one of the operations most commonly used by many industries such as chemical, mineral and biotechnology. In the mixing operation, the optimum design and operational efficiency of mixing is an important parameter to product quality and production costs. Momentum source term approach adds momentum source in the computational cells to represent the impeller propelling and the real blades are ignored. In the approach, the generations of the vessel configuration and grids are simpler, and the computational time is shorter and the computational accuracy is higher. The real approach is based on the aerodynamic airfoil and originally aimed to examine the two-dimensional flow in the mixing system. Following assumption Euler equation for the turbo engine, the momentum source has come from the rotating blade in the stirred tank. In this study, computing fluid dynamic (CFD) has been used as a tool to investigate the intimation detailed impression of the flow in the mixing tank.