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Numerical evaluation of artificial boundary condition for wall-bounded stably stratified flows
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SYSNO ASEP 0538082 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Numerical evaluation of artificial boundary condition for wall-bounded stably stratified flows Tvůrce(i) Bodnár, Tomáš (MU-W) RID, SAI, ORCID
Fraunié, P. (FR)
Knobloch, P. (CZ)
Řezníček, Hynek (MU-W) SAI, ORCIDZdroj.dok. Discrete and Continuous Dynamical systems - Series S, Series S. - : AIMS Press - ISSN 1937-1632
Roč. 14, č. 3 (2021), s. 785-801Poč.str. 17 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova stratified fluid ; finite difference method ; Lee waves ; artificial boundary conditions Vědní obor RIV BA - Obecná matematika Obor OECD Pure mathematics CEP GA16-03230S GA ČR - Grantová agentura ČR GA19-04243S GA ČR - Grantová agentura ČR Způsob publikování Open access Institucionální podpora MU-W - RVO:67985840 UT WOS 000608373600003 EID SCOPUS 85099683097 DOI 10.3934/dcdss.2020333 Anotace The paper presents a numerical study of the efficiency of the newly proposed far-field boundary simulations of wall-bounded, stably stratified flows. The comparison of numerical solutions obtained on large and truncated computational domain demonstrates how the solution is affected by the adopted far-field conditions. The mathematical model is based on Boussinesq approximation for stably stratified viscous variable density incompressible fluid. The three-dimensional numerical simulations of the steady flow over an isolated hill were performed using a high-resolution compact finite difference code, with artificial compressibility method used for pressure computation. The mutual comparison of the full domain reference solution and the truncated domain solution is provided and the influence of the newly proposed far-field boundary condition is discussed. Pracoviště Matematický ústav Kontakt Jarmila Štruncová, struncova@math.cas.cz, library@math.cas.cz, Tel.: 222 090 757 Rok sběru 2022 Elektronická adresa http://dx.doi.org/10.3934/dcdss.2020333
Počet záznamů: 1