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Numerical simulation of a viscoelastic fluid with a preconditioned Schwarz method

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Borges L., Sequeira A.

Banach Center Publications

2008

tom 81

nr 1

65-80

In this paper we apply a domain decomposition method to approach the solution of a non-Newtonian viscoelastic Oldroyd-B model. The numerical scheme is based on a fixed-point argument applied to the original non-linear system of partial differential equations decoupled into a Navier-Stokes system and a tensorial transport equation. Using a modified Schwarz algorithm, involving block preconditioners for the Navier-Stokes equations, the decoupled problems are solved iteratively. Numerical simulations on a 4:1 abrupt contraction flow problem are considered to validate the scheme.

Ograniczanie wyników

1 Banach Center Publications

1 Borges L.

1 Sequeira A.

1 2008

Wyniki wyszukiwania

Numerical simulation of a viscoelastic fluid with a preconditioned Schwarz method