On Application of EARSM Turbulence Model for Simulation of Flow Field behind Rack Station

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F13%3A00197554" target="_blank" >RIV/68407700:21220/13:00197554 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1051/epjconf/20134501013" target="_blank" >http://dx.doi.org/10.1051/epjconf/20134501013</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/epjconf/20134501013" target="_blank" >10.1051/epjconf/20134501013</a>

Jazyk výsledku

angličtina

Název v původním jazyce

On Application of EARSM Turbulence Model for Simulation of Flow Field behind Rack Station

Popis výsledku v původním jazyce

This paper is interested in the mathematical modeling and approximation of the turbulent flow with strong anisotropy for the case of flow in a rack station. Turbulent models based on Boussinesq eddy viscosity assumption are traditionally employed for the solution of these types of flows. Linear eddy viscosity model and the assumption of isotropic Reynolds stress tensor are typically used in many cases. This leads to certain limitations in the cases of either separated flow or flow with significant curvature of the mean flow. The application of full Reynolds stress model is suitable for this case but it introduces at least seven additional equations and the model has much higher demand for computing time, grid parameters and discretization schemes. Therefore the Explicit Algebraic Reynolds Stress Model (EARSM) is used here. This model is based on two equations k - omega turbulence model with the nonlinear eddy viscosity model and explicit terms for anisotropic parts of the Reynolds stress tensor. The computational requirements are similar to the standard k - omega model. The numerical and experimental results from PIV measurement are compared.

Název v anglickém jazyce

On Application of EARSM Turbulence Model for Simulation of Flow Field behind Rack Station

Popis výsledku anglicky

This paper is interested in the mathematical modeling and approximation of the turbulent flow with strong anisotropy for the case of flow in a rack station. Turbulent models based on Boussinesq eddy viscosity assumption are traditionally employed for the solution of these types of flows. Linear eddy viscosity model and the assumption of isotropic Reynolds stress tensor are typically used in many cases. This leads to certain limitations in the cases of either separated flow or flow with significant curvature of the mean flow. The application of full Reynolds stress model is suitable for this case but it introduces at least seven additional equations and the model has much higher demand for computing time, grid parameters and discretization schemes. Therefore the Explicit Algebraic Reynolds Stress Model (EARSM) is used here. This model is based on two equations k - omega turbulence model with the nonlinear eddy viscosity model and explicit terms for anisotropic parts of the Reynolds stress tensor. The computational requirements are similar to the standard k - omega model. The numerical and experimental results from PIV measurement are compared.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BK - Mechanika tekutin

OECD FORD obor

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Projekt

<a href="/cs/project/TA01010184" target="_blank" >TA01010184: Výzkum a vývoj řešení rozvaděčových, chladících a transportních systémů pro datová centra</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

EPJ Web of Conferences

ISSN

2100-014X

e-ISSN

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Svazek periodika

45

Číslo periodika v rámci svazku

April

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

4

Strana od-do

"01013-p1"-"01013-p4"

Kód UT WoS článku

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EID výsledku v databázi Scopus

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