FVM Model of Advection-Diffusion Mass Transport with Respect to Numerical Diffusion

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

FVM Model of Advection-Diffusion Mass Transport with Respect to Numerical Diffusion

Popis výsledku v původním jazyce

In the contribution, the FVM model of advection-diffusion mass transport is presented. The model was derived and implemented as a part of the wider model of processes inside an internal combustion engine. In the paper, the overall model is briefly introduced, the major part is devoted to presentation of the FVM model of advection-diffusion mass transport and our approach to correction of numerical diffusion. The explicit upwind scheme is used, therefore the stability condition should be set. It was derived as confined to the case of incompressible flow with a correction for nonlinear compressible one. It restricts the time step by the second order of spatial discretization parameter. The upwind method applied to the advection term leads to numerical diffusion. Its reduction is proposed and tested on simple problems by comparison with their analytic solutions.

Název v anglickém jazyce

FVM Model of Advection-Diffusion Mass Transport with Respect to Numerical Diffusion

Popis výsledku anglicky

In the contribution, the FVM model of advection-diffusion mass transport is presented. The model was derived and implemented as a part of the wider model of processes inside an internal combustion engine. In the paper, the overall model is briefly introduced, the major part is devoted to presentation of the FVM model of advection-diffusion mass transport and our approach to correction of numerical diffusion. The explicit upwind scheme is used, therefore the stability condition should be set. It was derived as confined to the case of incompressible flow with a correction for nonlinear compressible one. It restricts the time step by the second order of spatial discretization parameter. The upwind method applied to the advection term leads to numerical diffusion. Its reduction is proposed and tested on simple problems by comparison with their analytic solutions.

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

2003

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of SIMONA 2003 workshop

ISBN

80-7083-774-8

ISSN

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e-ISSN

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Počet stran výsledku

10

Strana od-do

47-56

Název nakladatele

Technická univerzita Liberec

Místo vydání

Liberec

Místo konání akce

Liberec, Česká republika

Datum konání akce

1. 9. 2003

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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