Topical Problems of Fluid Mechanics


Institute of Thermomechanics AS CR, v.v.i.	CTU in Prague Faculty of Mech. Engineering Dept. Tech. Mathematics	MIO Université du Sud Toulon Var - AMU - CNRS - IRD	Czech Pilot centre ERCOFTAC

Parallel Domain Decomposition Solver for Flows in Hydrostatic Bearings
M. Hanek, J. Šístek, P. Burda, E. Stach
Abstract:
We perform simulations of oil ?ow in hydrostatic bearings. Stationary incompressible three-dimensional ?ow governed by the Navier-Stokes equations is considered. The ?nite element method is used for discretization. The arising nonlinear system of algebraic equations is linearized using the Picard’s iteration, and the Balancing Domain Decomposition based on Constraints (BDDC) method is used to solve the linear systems of equations. The solver is ?rst validated with an experiment for the case of a bearing without motion, and it is then applied to simulation of ?ow in a sliding bearing.
Keywords:
Hydrostatic bearings, Navier-Stokes equations, Finite element method, Balancing Domain Decomposition based on Constraints, BDDC

Fulltext: PDF DOI: https://doi.org/10.14311/TPFM.2018.018

In Proceedings Topical Problems of Fluid Mechanics 2018, Prague, 2018 Edited by David Šimurda and Tomáš Bodnár, pp. 137-144 ISBN 978-80-87012-65-9 (Print) ISSN 2336-5781 (Print)