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Article Dans Une Revue International Journal for Numerical Methods in Fluids Année : 2016

Multi-stage high order semi-Lagrangian schemes for incompressible flows in Cartesian geometries

Résumé

Efficient transport algorithms are essential to the numerical resolution of incompressible fluid flow problems. Semi-Lagrangian methods are widely used in grid based methods to achieve this aim. The accuracy of the interpolation strategy then determines the properties of the scheme. We introduce a simple multi-stage procedure which can easily be used to increase the order of accuracy of a code based on multi-linear interpolations. This approach is an extension of a corrective algorithm introduced by Dupont & Liu (2003, 2007). This multi-stage procedure can be easily implemented in existing parallel codes using a domain decomposition strategy, as the communications pattern is identical to that of the multi-linear scheme. We show how a combination of a forward and backward error correction can provide a third-order accurate scheme, thus significantly reducing diffusive effects while retaining a non-dispersive leading error term.
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Dates et versions

hal-01335662 , version 1 (22-06-2016)

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Alexandre Cameron, Raphaël Raynaud, Emmanuel Dormy. Multi-stage high order semi-Lagrangian schemes for incompressible flows in Cartesian geometries. International Journal for Numerical Methods in Fluids, 2016, ⟨10.1002/fld.4245⟩. ⟨hal-01335662⟩
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