THE ANALYSIS OF THE BOUNDARY CONDITIONS FOR THE COMPRESSIBLE GAS FLOW AS A MODIFICATION OF THE RIEMANN PROBLEM
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00010669%3A_____%2F13%3A%230001599" target="_blank" >RIV/00010669:_____/13:#0001599 - isvavai.cz</a>
Result on the web
<a href="http://www.engmech.cz/2013/im/im/page/proceedings" target="_blank" >http://www.engmech.cz/2013/im/im/page/proceedings</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
THE ANALYSIS OF THE BOUNDARY CONDITIONS FOR THE COMPRESSIBLE GAS FLOW AS A MODIFICATION OF THE RIEMANN PROBLEM
Original language description
We work with the system of equations describing non-stationary compressible turbulent fluid flow (2D,3D), i.e. the Reynolds-Averaged Navier-Stokes (RANS) equations, and we focus on the numerical solution of these equations and on the boundary conditions.Some boundary conditions (i.e. fixed, linearized) bring non-physical errors into the solution, which may lead to the wrong results. We use the analysis of the Riemann problem for the construction of the boundary conditions in order to match the experimental data. Within this problem we show, that the unknown one-side initial condition can be partially replaced by the suitable complementary condition. We suggest such complementary conditions (by the preference of total quantities, pressure, temperature,velocity, condition at the diffusible barrier,...) in order to match the physically relevant data. Algorithms were coded and used within our own developed code (using the finite volume method) for the solution of the Euler, NS, and the R
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
JU - Aeronautics, aerodynamics, aeroplanes
OECD FORD branch
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Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Engineering Mechanics 2013
ISBN
978-80-87012-46-8
ISSN
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e-ISSN
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Number of pages
2
Pages from-to
91-92
Publisher name
Institute of Thermomechanics, Academy of Sciences of the Czech Republic
Place of publication
Prague
Event location
Svratka
Event date
May 13, 2013
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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