Abstract
A turbulent liquid-solid suspension upward flow in a vertical pipe is simulated numerically using the Eulerian-Lagrangian approach. Particle-particle and particle-wall collisions are simulated based on the deterministic approach. The model considers the thermal turbulent field characteristics and includes k θ-τθ equation model, in addition to the k-τ model for two-phase flow. Numerical model validation was performed for an upward pipe liquid-solid flow with constant wall heat flux. Variations of the heat transfer coefficient by the loading ratio, the particle density, and the particle diameter are studied. It is observed that particle to liquid density has a dominant effect on turbulence and heat transfer characteristics.
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