Assessment of Multiple Rotating Reference Frame Model Simulations

9 Assessment of Multiple Rotating Reference Frame Model Simulations 

In this section a series of simulations of a standard vessel equipped with a Ruh-ton turbine, as obtained by use of the Multiple Rotating Reference Frame (MRRF) method, are evaluated. The simulations are performed with the commercial software FLUENT [24]. The simulations were run with a resolution of 86950 cells. 

The turbulent effects are described by a modified (RNG) k-e model [66, 82, 96-98]. For model validation experimental LDA data characterizing a standard vessel of laboratory scale, as reported by Engeskaug [22], is used. The simulations considered in this section have been reported by Engeskaug [22], Druecker [17] and Jakobsen [43]. 

The stirred tank geometry used in these investigations  

The grid used in these MRRF stirred tank simulations is shown in Fig. 7.22. 

---