Použití Bézierových ploch pro zkoumání nestacionárního proudění v úzkých 2D oblastech nepravidelného tvaru

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F07%3A00014622" target="_blank" >RIV/61989100:27230/07:00014622 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Application of Bézier surfaces to investigation of a non-stationary flow in narrow 2D regions of irregular shape

Popis výsledku v původním jazyce

In a number of technological applications the liquids flow in regions of irregular shape and their flow can be considered as 2D. Geometry of such regions can be suitably described by Bézier surfaces and positions of the individual points are then definedby curvilinear coordinates. The flow of Newtonian liquid is governed by the Navier-Stokes equations and the equation of continuity. The first step of their solving by the developed method requires to convert them into a conservative form. Then the derivatives with respect to the cartesian coordinates are replaced by the corresponding derivatives with respect to the curvilinear ones utilizing Bézier surfaces for this purpose. The coordinate transformation throws out the conservative form of the governing equations and therefore they must be recast into it again. This procedure transforms solution of the Navier-Stokes equations and the equation of continuity related to the irregular region to their solution referred to an auxillary recta

Název v anglickém jazyce

Application of Bézier surfaces to investigation of a non-stationary flow in narrow 2D regions of irregular shape

Popis výsledku anglicky

In a number of technological applications the liquids flow in regions of irregular shape and their flow can be considered as 2D. Geometry of such regions can be suitably described by Bézier surfaces and positions of the individual points are then definedby curvilinear coordinates. The flow of Newtonian liquid is governed by the Navier-Stokes equations and the equation of continuity. The first step of their solving by the developed method requires to convert them into a conservative form. Then the derivatives with respect to the cartesian coordinates are replaced by the corresponding derivatives with respect to the curvilinear ones utilizing Bézier surfaces for this purpose. The coordinate transformation throws out the conservative form of the governing equations and therefore they must be recast into it again. This procedure transforms solution of the Navier-Stokes equations and the equation of continuity related to the irregular region to their solution referred to an auxillary recta

Druh

D - Stať ve sborníku

CEP obor

JR - Ostatní strojírenství

OECD FORD obor

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Projekt

<a href="/cs/project/GA101%2F06%2F0152" target="_blank" >GA101/06/0152: Nestacionární pohyb tělesa v kapalině s velkými pohyby hranice</a><br>

Návaznosti

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

Rok uplatnění

2007

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of the 2nd ECCOMAS Thematics Conference on Meshless Methods

ISBN

978-972-8826-12-3

ISSN

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e-ISSN

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Počet stran výsledku

9

Strana od-do

347-355

Název nakladatele

University of Porto

Místo vydání

Porto, Portugalsko

Místo konání akce

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Datum konání akce

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Typ akce podle státní příslušnosti

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Kód UT WoS článku

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