A Comparison between Classical DES and DDES Using the In-house Computational Code

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

A Comparison between Classical DES and DDES Using the In-house Computational Code

Popis výsledku v původním jazyce

The comprehensive three-dimensional turbulent flow study was performed using the in-house computational code. The simulation of the turbulent effect on the incompressible flows was carried out by the turbulent hybrid model. In general, turbulent flow simulation belongs to the time consuming calculations and requires mostly finer grid resolutions at boundaries. To find appropriate computational conditions, the numerical methods, code compilation and code calculations were investigated. Using optimal compilation options and grid construction, the computational performance can be increased and therefore, higher grid resolutions can be achieved and total required computational time can be reduced. Furthermore, the aspect of the two turbulent flow approaches represented by Delayed-Detached Eddy Simulation (DDES) and classical Detached Eddy Simulation was studied on the benchmarks of the turbulent flow past a cylinder at Reynolds number 3.900.

Název v anglickém jazyce

A Comparison between Classical DES and DDES Using the In-house Computational Code

Popis výsledku anglicky

The comprehensive three-dimensional turbulent flow study was performed using the in-house computational code. The simulation of the turbulent effect on the incompressible flows was carried out by the turbulent hybrid model. In general, turbulent flow simulation belongs to the time consuming calculations and requires mostly finer grid resolutions at boundaries. To find appropriate computational conditions, the numerical methods, code compilation and code calculations were investigated. Using optimal compilation options and grid construction, the computational performance can be increased and therefore, higher grid resolutions can be achieved and total required computational time can be reduced. Furthermore, the aspect of the two turbulent flow approaches represented by Delayed-Detached Eddy Simulation (DDES) and classical Detached Eddy Simulation was studied on the benchmarks of the turbulent flow past a cylinder at Reynolds number 3.900.

Druh

D - Stať ve sborníku

CEP obor

BK - Mechanika tekutin

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název statě ve sborníku

9th WSEAS Int. Conf. on System Science and Simulation in Engineering (ICOSSSE 10)

ISBN

9789604742301

ISSN

1792-507X

e-ISSN

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Počet stran výsledku

6

Strana od-do

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Název nakladatele

WSEAS

Místo vydání

Iwate, Japonsko

Místo konání akce

Japonsko

Datum konání akce

1. 1. 2010

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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