Numerical tests of far-field boundary conditions for stably stratified flows

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985840%3A_____%2F19%3A00508008" target="_blank" >RIV/67985840:_____/19:00508008 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21220/19:00338053
Result on the web
<a href="http://dx.doi.org/10.14311/TPFM.2019.003" target="_blank" >http://dx.doi.org/10.14311/TPFM.2019.003</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.14311/TPFM.2019.003" target="_blank" >10.14311/TPFM.2019.003</a>

Result language
angličtina
Original language name
Numerical tests of far-field boundary conditions for stably stratified flows
Original language description
This numerical study presents the results of simulations of stably stratified wall-bounded flows. The effect of artificial far-field boundary conditions is studied in detail. The standard homogeneous Neumann condition for pressure is replaced by a non-homogeneous condition depending on local velocity and its gradient. The two-dimensional tests are performed for the case of flow over a low isolated hill. The simulations on computational domains with three different heights are discussed to evaluate the performance of the new far-field artifcial boundary condition. The model is based on Boussinesq approximation of non-homogeneous Navier-Stokes equations, solved using artificial compressibility method, looking for a steady solution.
Czech name
—
Czech description
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Project
<a href="/en/project/GA16-03230S" target="_blank" >GA16-03230S: Thermodynamically consistent models for fluid flows: mathematical theory and numerical solution</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of Topical Problems of Fluid Mechanics 2019
ISBN
978-80-87012-69-7
ISSN
2336-5781
e-ISSN
—
Number of pages
8
Pages from-to
17-24
Publisher name
Institute of Thermomechanics of the Czech Academy of Sciences
Place of publication
Praha
Event location
Prague
Event date
Feb 20, 2019
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000519337800003

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