NUMERICAL SIMULATION OF THE FLOW AROUND DIFFUSIBLE BARRIERS

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

NUMERICAL SIMULATION OF THE FLOW AROUND DIFFUSIBLE BARRIERS

Popis výsledku v původním jazyce

We work with the system of equations describing the non-stationary compressible fluid flow, and we focus on the numerical solution of these equations, and on the boundary conditions. In order to construct the boundary conditions we analyze the equationsin the close vicinity of the boundary. Many boundary conditions (i.e. fixed, linearized) do not solve the local problem in an appropriate way, which may bring non-physical errors into the solution, slow down the convergent process, or even ruin the solution in the whole domain. We use the analysis of the exact solution of the Riemann problem in order to solve this local boundary problem. In the case of the diffusible barrier we solve the modified Riemann problem, with the one-side initial condition, complemented with the Darcy's law and added inertial loss. We analyze the solution of this problem. We show the computational results of the flow through the diffusible barrier, obtained with the own-developed code for the solution of the co

Název v anglickém jazyce

NUMERICAL SIMULATION OF THE FLOW AROUND DIFFUSIBLE BARRIERS

Popis výsledku anglicky

We work with the system of equations describing the non-stationary compressible fluid flow, and we focus on the numerical solution of these equations, and on the boundary conditions. In order to construct the boundary conditions we analyze the equationsin the close vicinity of the boundary. Many boundary conditions (i.e. fixed, linearized) do not solve the local problem in an appropriate way, which may bring non-physical errors into the solution, slow down the convergent process, or even ruin the solution in the whole domain. We use the analysis of the exact solution of the Riemann problem in order to solve this local boundary problem. In the case of the diffusible barrier we solve the modified Riemann problem, with the one-side initial condition, complemented with the Darcy's law and added inertial loss. We analyze the solution of this problem. We show the computational results of the flow through the diffusible barrier, obtained with the own-developed code for the solution of the co

Druh

D - Stať ve sborníku

CEP obor

JU - Aeronautika, aerodynamika, letadla

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název statě ve sborníku

Experimental fluid mechanics 2012

ISBN

978-80-7372-912-7

ISSN

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e-ISSN

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Počet stran výsledku

9

Strana od-do

390-398

Název nakladatele

Polypress s.r.o.

Místo vydání

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Místo konání akce

Hradec Králové

Datum konání akce

20. 11. 2012

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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