Abstract
This chapter illustrates computational model that involves transport equations for momentum and turbulent quantities for a continuous and monodisperse phase interacting with each other in the framework of the two fluids using Euler/Euler approach. It is noted that the background turbulence model uses eddy-viscosity as the model parameter. In addition to dynamic equations for the turbulent kinetic energy and its dissipation rate of the continuous phase, the model employs transport equations for the turbulence kinetic energy and for the covariance of velocities of the disperse and continuous phase, essentially characterizing turbulence of the disperse phase. A central differencing scheme is also applied to avoid an unrealistic constant value of the volumetric fraction. It is observed that the model is validated through computations of the particle-laden, fully developed channel flow, and flow over a backward-facing step. The results thus obtained are compared with the results obtained by an Euler/Lagrange scheme.
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