ABSTRACT
A survey in the literature on CFD modeling of spray dryers will reveal that early initial work in this area utilizes the RANS with closure equations to model the turbulence of the flow (Oakley and Bahu 1993; Harvie et al. 2002) or solving the individual components of the RANS stress tensors (Oakley and Bahu 1993; Huang et al. 2004). The turbulence parameter (e.g., turbulent kinetic energy) is then used in the prediction of the particle dispersion phenomenon. Usage of the closure equations approach provides a convenient approach, finding a compromise between the computational requirements and the level of details in the turbulence prediction. It should be noted that a compromise in the “level of detail” may not necessarily mean compromising the accuracy of the turbulence prediction.
