Drag in Low-Re Polydisperse Gas-Solid Suspensions

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Presentation transcript:

Drag in Low-Re Polydisperse Gas-Solid Suspensions Sankaran Sundaresan, Chemical Engineering Department, Princeton University Princeton, NJ 08648 Computationally generated drag correlations are available for monodisperse suspensions, but not for fixed beds and suspensions containing particles of different sizes. We use lattice-Boltzmann method to simulate low-Re flow in binary assemblies of spherical particles and characterize the drag forces. Fixed beds: Suspensions: Average error: 13% Average error: 3.9% In the next year, we will study the drag forces in suspensions with finite Reynolds numbers.