Number of the records: 1
Numerical evaluation of artificial boundary condition for wall-bounded stably stratified flows
- 1.
SYSNO ASEP 0538082 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Numerical evaluation of artificial boundary condition for wall-bounded stably stratified flows Author(s) Bodnár, Tomáš (MU-W) RID, SAI, ORCID
Fraunié, P. (FR)
Knobloch, P. (CZ)
Řezníček, Hynek (MU-W) SAI, ORCIDSource Title Discrete and Continuous Dynamical systems - Series S, Series S. - : AIMS Press - ISSN 1937-1632
Roč. 14, č. 3 (2021), s. 785-801Number of pages 17 s. Language eng - English Country US - United States Keywords stratified fluid ; finite difference method ; Lee waves ; artificial boundary conditions Subject RIV BA - General Mathematics OECD category Pure mathematics R&D Projects GA16-03230S GA ČR - Czech Science Foundation (CSF) GA19-04243S GA ČR - Czech Science Foundation (CSF) Method of publishing Open access Institutional support MU-W - RVO:67985840 UT WOS 000608373600003 EID SCOPUS 85099683097 DOI 10.3934/dcdss.2020333 Annotation 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. Workplace Mathematical Institute Contact Jarmila Štruncová, struncova@math.cas.cz, library@math.cas.cz, Tel.: 222 090 757 Year of Publishing 2022 Electronic address http://dx.doi.org/10.3934/dcdss.2020333
Number of the records: 1