Original title: Artificial far-field pressure boundary conditions for wall-bounded stratified flows
Authors: Bodnár, Tomáš ; Fraunié, P.
Document type: Papers
Conference/Event: Conference TOPICAL PROBLEMS OF FLUID MECHANICS 2018, Praha (CZ), 20180221
Year: 2018
Language: eng
Abstract: This paper presents an alternative boundary conditions setup for the numerical simulations of stably stratifed flow. The focus of the tested computational setup is on the pressure boundary conditions on the arti cial boundaries of the computational domain. The simple three dimensional test case deals with the steady flow of an incompressible, variable density fluid over a low smooth model hill. The Boussinesq approximation model is solved by an in-house developed high-resolution numerical code, based on compact finite-difference discretization in space and Strong Stability Preserving Runge-Kutta method for (pseudo-) time stepping.
Keywords: Boussinesq approximation; compact finite-difference; pressure boundary condition; stable stratification
Project no.: GA16-03230S (CEP)
Funding provider: GA ČR
Host item entry: Topical Problems of Fluid Mechanics 2018, ISBN 978-80-87012-65-9, ISSN 2336-5781
Note: Související webová stránka: http://www.it.cas.cz/fm/im/im/proceeding/2018/2

Institution: Institute of Mathematics AS ČR (web)
Document availability information: Fulltext is available in the digital repository of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0292041

Permalink: http://www.nusl.cz/ntk/nusl-391541


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Research > Institutes ASCR > Institute of Mathematics
Conference materials > Papers