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PRESENTATION 11/2016ET2013-007/C2016-154Eulerian simulation of 3D freely-falling granular jetThe purpose of the paper is the numerical simulation of a silo discharge by using an Euler-Euler approach. 3D unsteady numerical simulations of an experiment have been performed. The geometry is composed of a silo and of a free-fall chamber. Then…
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PRESENTATION 11/2016ET2013-007/C2016-160Analytical and practical analysis of frictional-kinetic model for dense and dilute gas-solid flowsIn granular flows, when the solid volume fraction is large, the dynamic behaviour of particles becomes controlled by frictional effects. Theoretically these effects can not be taken into account in an Eulerian approach, based on the kinetic theory…
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STUDY 01/2013ET2013-007Three-dimensional simulation of aerosolization of powders when transferring materials in powder formAlmost all industrial sectors are concerned by production or handling of materials in powder form: agri-food, metallurgy, pharmacy, milling, baking, fine chemicals, mining, etc. When such materials in powder form are handled or bagged, a fraction…
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PRESENTATION 11/2014ET2013-007/C2014-108Numerical analysis of dust emission by powder discharge and jet expansionThe paper deals with the Euler-Euler numerical simulation of an experimental study (Ansart et al., 2009[1]) of freely falling granular jetfor investigating the dispersion of dust. The configuration is a bunker,where quasi-static particulate flow…
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PRESENTATION 05/2015EL2014-015/C2015-058Improving the scavenging kernel of aerosol particles by small water dropsScavenging aerosol particles by means of water sprays is an efficient way of removing hazardous dust from the atmosphere. Starting from the work of Wang et al. (1978), we propose to extend its formulation of a theoretical scavenging kernel to particles…
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PRESENTATION 01/2016EL2014-015/C2016-007Aerosol scavenging by drops : deriving a collection kernel from microphysical modellingScavenging aerosol particles by droplets is an efficient way of removing solid particles from gases. Despite its interest for both industrial applications and occupational health, predicting realistic removal rates by means of a simple collection…
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PRESENTATION 01/2016EL2014-015/C2016-015Modelling the removal rate of airborne dust by sprays: importance of a realistic scavenging kernelIndoor air quality can be strongly affected by high aerosol particles concentration. When ventilation is not possible, aerosol scavenging by water sprays can be applied to protect workers. But, despite its interest for both industrial applications…
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PRESENTATION 06/2016EL2014-015/C2016-095Modeling aerosol scavenging by drops: from microphysical CFD simulations to a global collection kernelScavenging aerosol particles by droplets is an efficient way of removing hazardous particles from gases. Therefore, predicting removal rates by means of a realistic collection kernel is a purpose in several research fields like environment…
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PUBLICATION 05/2023EL2014-015/P2023-076Numerical study of aerosol particles collection by falling dropsTo model the capture of aerosols by an isolated drop falling at terminal velocity, an Eulerian approach to simulate both
internal and external flows (gas phase: air surrounding the drop, liquid phase: water of the drop) is coupled to a Lagrangian
approach…Learn more
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PRESENTATION 12/2013EL2012-018/C2013-163Characterization of wood dust emission profiles for hand held machinesThere is a clear need of characterizing and evaluating wood dust emission profiles from wood working machines in order to predict potential exposure peaks and to ensure the safety of workers. Indeed, wood dust is classified as a well known carcinogen…
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