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Communication Dans Un Congrès Année : 2015

Numerical Analysis of Dust Emission by Powder Discharge and Jet Expansion

Résumé

The paper deals with the Euler-Euler numerical simulation of an experimental study (Ansart et al., 2009 [1]) of freely falling granular jet for investigating the dispersion of dust. The configuration is a bunker, where quasi-static particulate flow takes place, and a free-fall chamber. As a first step, a frictional viscosity model developed by Srivastava and Sundaresan (2003) [2] is implemented to take into account the frictional effects occurring in the quasi-static particulate flows. Without the frictional model for the viscosity, the numerical simulations overpredict the solid mass flow rate at the outlet of the bunker. When using the frictional viscosity, the solid mass flow rate is in better accordance with the experimental value. However, the solid velocity is overestimated in numerical simulations.
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Dates et versions

hal-04107965 , version 1 (26-05-2023)

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François Audard, Pascal Fede, Olivier Simonin, Emmanuel Belut. Numerical Analysis of Dust Emission by Powder Discharge and Jet Expansion. ASME/JSME/KSME 2015 Joint Fluids Engineering Conference, Jul 2015, Seoul, South Korea. pp.V001T32A001, ⟨10.1115/AJKFluids2015-32120⟩. ⟨hal-04107965⟩
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