Simulation of particle dynamics for rarefied flows: Backflow in thruster plumes

Abstract : A novel model and a new numerical method are presented for the transport of solid particles in rarefied flows. The model is based on a Vlasov type equation where the particles are represented by a distribution function. The rarefied flow is described by a BGK or ES-BGK approach. An accurate method is proposed to solve the particle transport equation in a fully Eulerian framework. Validations in 2D with respect to analytical solutions and a Lagrangian method are presented. The numerical model is then used to explain a peculiar particle dynamics observed in satellite thrusters.
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Submitted on : Tuesday, February 14, 2017 - 11:55:36 AM
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Florian Bernard, Angelo Iollo, Gabriella Puppo. Simulation of particle dynamics for rarefied flows: Backflow in thruster plumes. European Journal of Mechanics - B/Fluids, Elsevier, 2017, 63, pp.14. ⟨hal-01467275⟩

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