On the use of High Order Compact Schemes for the Simulation of Stably Stratified Fluid Flow

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

On the use of High Order Compact Schemes for the Simulation of Stably Stratified Fluid Flow

Popis výsledku v původním jazyce

The aim of this paper is to present the class of high order compact schemes in the context of numerical simulation of stratified flow. The numerical model presented in this contribution is based on the solution of the Boussinesq approximation by a finite-difference scheme. The numerical scheme itself follows the principle of semi-discretization, with high order compact discretization in space, while the time integration is carried out by suitable Runge-Kutta time-stepping scheme. In the case presented here the steady flow was considered and thus the artificial compressibility method was used to resolve the pressure from the modified continuity equation. The test case used to demonstrate the capabilities of the selected model consists of the flow of stably stratified fluid over low, smooth hill. This case was chosen to simulate the common situation appearing in the atmospheric boundary layer flows over orography.

Název v anglickém jazyce

On the use of High Order Compact Schemes for the Simulation of Stably Stratified Fluid Flow

Popis výsledku anglicky

The aim of this paper is to present the class of high order compact schemes in the context of numerical simulation of stratified flow. The numerical model presented in this contribution is based on the solution of the Boussinesq approximation by a finite-difference scheme. The numerical scheme itself follows the principle of semi-discretization, with high order compact discretization in space, while the time integration is carried out by suitable Runge-Kutta time-stepping scheme. In the case presented here the steady flow was considered and thus the artificial compressibility method was used to resolve the pressure from the modified continuity equation. The test case used to demonstrate the capabilities of the selected model consists of the flow of stably stratified fluid over low, smooth hill. This case was chosen to simulate the common situation appearing in the atmospheric boundary layer flows over orography.

Druh

D - Stať ve sborníku

CEP obor

BK - Mechanika tekutin

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of the Fifth Conference on Computation Fluid Dynamics ECCOMAS CFD 2010

ISBN

978-989-96778-1-4

ISSN

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e-ISSN

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Počet stran výsledku

10

Strana od-do

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Název nakladatele

Instituto Superior Técnico, Technical University of Lisbon, National Civil Engineering Laboratory

Místo vydání

Lisbon

Místo konání akce

Lisabon

Datum konání akce

14. 6. 2010

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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