Three-dimensional turbulence modeling and computational fluid dynamics simulation of hydrodynamics of two-impinging-jet spinning disk reactors

Abstract

In this article, a three-dimensional numerical simulation based on a Reynolds stress model has been developed to investigate the hydrodynamic behavior of two-impinging-jet spinning disk reactors (TIJSDRs) proposed by Molaei Dehkordi. TIJSDR comprises two coaxial rotating disks separated by a small distance and two-impinging jets introduced at the center of both the rotating disks. The governing equations were solved using Computational Fluid Dynamics techniques to predict the hydrodynamic behavior and turbulent flow pattern as well as to explore the effects of pertinent parameters such as rotational speeds of the disks, the direction of rotating disks, and configuration dimensions on the velocity distribution of the turbulent flow and fluid flow pattern. Depending on the values of these parameters and the radial location, different flow types, including Batchelor, Stewartson, and torsional Couette with merged and unmerged boundary layers, were observed.