Gerris: a tree-based adaptive solver for the incompressible Euler equations in complex geometries
Résumé
An adaptive mesh projection method for the time-dependent incompressible Euler equations is presented. The domain is spatially discretised using quad/octrees and a multilevel Poisson solver is used to obtain the pressure. Complex solid boundaries are represented using a volume-of- uid approach. Second-order convergence in space and time is demonstrated on regular, statically and dynamically refined grids. The quad/octree discretisation proves to be very exible and allows accurate and efficient tracking of ow features. The source code of the method implementation is freely available.
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