Název:
A parallel finite element solver for unsteady incompressible Navier-Stokes equations
Autoři:
Šístek, Jakub Typ dokumentu: Příspěvky z konference Konference/Akce: Topical Problems of Fluid Mechanics 2015, Praha (CZ), 2015-02-11 / 2015-02-13
Rok:
2015
Jazyk:
eng
Abstrakt: A parallel solver for unsteady incompressible Navier-Stokes equations is presented. It is based on the finite element method combined with the pressure-correction approach. Semi-implicit treatment of the convective term is considered, leading to five systems of linear algebraic equations to be solved in each time step. Krylov subspace iterative methods are employed for the solution of these systems with a particular emphasis on efficient parallel preconditioners. A simulation of a benchmark problem of incompressible viscous flow around a sphere at Reynolds number 300 is presented and compared with literature.
Klíčová slova:
flow around a sphere; parallel algorithms; pressure-correction Číslo projektu: GA14-02067S (CEP) Poskytovatel projektu: GA ČR Zdrojový dokument: Topical Problems of Fluid Mechanics 2015 , ISBN 978-80-87012-55-0, ISSN 2336-5781