Abstract

By a numerical simulation, the saltation velocity at which the total pressure drop per unit length along a horizontal pipe becomes a minimum for coarse particles is predicted relative to the gas velocity for a given mass flow rate of particles. The Lagrangian approach is used for the particle motion, and the presence of particles is considered as a particle source term in the Reynolds equations for gas flow. The prediction by the present simulation is quantitatively similar to measurements done by several researchers.

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