The effect of subgrid scales on motion of particles in particle-laden channel flow

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F09%3APU83275" target="_blank" >RIV/00216305:26210/09:PU83275 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

The effect of subgrid scales on motion of particles in particle-laden channel flow

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

The effect of subgrid scales on motion of particles in particle-laden channel flow

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

BJ - Termodynamika

OECD FORD obor

—

Projekt

<a href="/cs/project/GA101%2F08%2F0096" target="_blank" >GA101/08/0096: Moderní metoda Large Eddy Simulation pro řešení dvoufázového turbulentního proudění a kapalný stěnový film</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2009

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Colloquium Fluid Dynamics Proceedings

ISBN

978-80-87012-21-5

ISSN

—

e-ISSN

—

Počet stran výsledku

2

Strana od-do

—

Název nakladatele

Institute of Thermodynamics AS CR

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

21. 10. 2009

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

—