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Implementation and analysis of numerical solution of the population balance equation in CFD packages by L.F.L.R. Silva; R.B. Damian; P.L.C. Lage is a Engineering article available to read on EtoBox.

What is Implementation and analysis of numerical solution of the population balance equation in CFD packages about?

Simulation of polydisperse flows must include the effects of particle-particle interaction, as breakage and aggregation, coupling the population balance equation (PBE) with the multiphase modelling. In fact, the implementation of efficient and accurate new numerical techniques to solve the PBE is necessary. The direct quadrature method of moments, known as DQMOM, is a moment-based method that uses an optimal adaptive quadrature closure and came into view as a promising choice for this implementation. In the present work, DQMOM was implemented in two CFD packages: the commercial ANSYS CFX, through FORTRAN subroutines, and the open-source OpenFOAM, by directly coding the PBE solution. Transient zero-dimensional and steady one-dimensional simulations were performed in order to explore the PBE solution accuracy using several interpolation schemes. Simulation cases with dominant breakage, dominant aggregation and invariant solution (equivalent breakage and aggregation) were simulated and validated against an analytical solution. The solution of the population balance equation was then coupled to the two-fluid model, considering that all particles classes share the same velocity field. M

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Author

L.F.L.R. Silva; R.B. Damian; P.L.C. Lage

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0098-1354)

Published

2008

Language

EN

Field

Engineering (Physical Sciences)