Vortex Flows and Related Numerical Methods II
ESAIM: Proceedings,
Vol. 1, 1996, pp. 125-134
The Pressure Problem in the
Stochastic Vortex Blob Method
Andrzej Nowakowski, Jacek Rokicki and Andrzej Styczek
Institute of Aeronautics and Applied Mechanics
Warsaw University of Technology
Nowowiejska 22/24, 00-665 Warsaw, Poland
Abstract
The paper deals with the problem of recovering pressure from
the given vorticity and velocity fields.
Both fields result from the stochastic vortex-blob simulation
of the viscous incompressible flow. The vorticity field
is a discontinuous function. The method is presented here to find pressure
as a solution to the variational problem which forms the weak
version of the momentum equation. No explicit boundary
condition for pressure are required and no derivatives
of vorticity have to be calculated in this approach.
Vortex Flows and Related
Numerical Methods II
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