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Statements

Subject Item
n2:RIV%2F00216305%3A26210%2F09%3APU83275%21RIV10-GA0-26210___
rdf:type
skos:Concept n15:Vysledek
dcterms:description
The effect of subgrid scales on motion of particles is studied in this work. The case of particleladen channel flow was chosen as a test case. The method used for simulation of the transport (liquid) phase was Large Eddy Simulation using approximate deconvolution method as a subgrid model. The dispersed phase (particles) was treated by Lagrangian approach. To Lagrangian equations of motion describing the motion of particles was added an additional stochastic term in order to include the effect of subgrid scales on particles. This term is proportional to the subgrid kinetic energy. The simulations were performed for various size of particles. The results are compared with the previous studies of LES particle-laden flows and DNS simulation done by Kuerten. The stochastic model proposed in this work shows improvement in prediction of turbulent statistics of particles and concentration of particles close to the wall. The effect of subgrid scales on motion of particles is studied in this work. The case of particleladen channel flow was chosen as a test case. The method used for simulation of the transport (liquid) phase was Large Eddy Simulation using approximate deconvolution method as a subgrid model. The dispersed phase (particles) was treated by Lagrangian approach. To Lagrangian equations of motion describing the motion of particles was added an additional stochastic term in order to include the effect of subgrid scales on particles. This term is proportional to the subgrid kinetic energy. The simulations were performed for various size of particles. The results are compared with the previous studies of LES particle-laden flows and DNS simulation done by Kuerten. The stochastic model proposed in this work shows improvement in prediction of turbulent statistics of particles and concentration of particles close to the wall.
dcterms:title
The effect of subgrid scales on motion of particles in particle-laden channel flow The effect of subgrid scales on motion of particles in particle-laden channel flow
skos:prefLabel
The effect of subgrid scales on motion of particles in particle-laden channel flow The effect of subgrid scales on motion of particles in particle-laden channel flow
skos:notation
RIV/00216305:26210/09:PU83275!RIV10-GA0-26210___
n3:aktivita
n20:P
n3:aktivity
P(GA101/08/0096)
n3:dodaniDat
n4:2010
n3:domaciTvurceVysledku
n14:3247538
n3:druhVysledku
n8:D
n3:duvernostUdaju
n16:S
n3:entitaPredkladatele
n5:predkladatel
n3:idSjednocenehoVysledku
312268
n3:idVysledku
RIV/00216305:26210/09:PU83275
n3:jazykVysledku
n7:eng
n3:klicovaSlova
Large eddy simulation, particles, subgrid modeling
n3:klicoveSlovo
n6:subgrid%20modeling n6:particles n6:Large%20eddy%20simulation
n3:kontrolniKodProRIV
[C51E42CF8860]
n3:mistoKonaniAkce
Praha
n3:mistoVydani
Praha
n3:nazevZdroje
Colloquium Fluid Dynamics Proceedings
n3:obor
n19:BJ
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
2
n3:projekt
n10:GA101%2F08%2F0096
n3:rokUplatneniVysledku
n4:2009
n3:tvurceVysledku
Volavý, Jaroslav
n3:typAkce
n21:EUR
n3:zahajeniAkce
2009-10-21+02:00
s:numberOfPages
2
n13:hasPublisher
Ústav termomechaniky AV ČR
n17:isbn
978-80-87012-21-5
n12:organizacniJednotka
26210