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New high-resolution-preserving sliding mesh techniques for higher-order finite volume schemes

Article dans une revue avec comité de lecture
Author
RAMÍREZ, Luis
424479 Institut Montpelliérain Alexander Grothendieck [IMAG]
318580 University of A Coruña [UDC]
FOULQUIÉ, Charles
NOGUEIRA, Xesús
318580 University of A Coruña [UDC]
CHASSAING, Jean-Camille
1798 Institut d'Alembert [IDA]
541882 Institut Jean Le Rond d'Alembert [DALEMBERT]
COLOMINAS, Ignasi
318580 University of A Coruña [UDC]
ccKHELLADI, Sofiane
134975 Laboratoire de Dynamique des Fluides [DynFluid]

URI
http://hdl.handle.net/10985/17818
DOI
10.1016/j.compfluid.2015.06.008
Date
2015
Journal
Computers & Fluids

Abstract

This paper presents a new sliding mesh technique for the computation of unsteady viscous flows in the presence of rotating bodies. The compressible Euler and incompressible Navier–Stokes equations are solved using a higher-order (>2) finite volume method on unstructured grids. A sliding mesh approach is employed at the interface between computational grids in relative motion. In order to prevent loss of accuracy, two distinct families of higher-order sliding mesh interfaces are developed. These approaches fit naturally in a high-order finite volume framework. To this end, Moving Least Squares (MLS) approximants are used for the transmission of the information from one grid to another. A particular attention is paid for the study of the accuracy and conservation properties of the numerical scheme for static and rotating grids. The capabilities of the present solver to compute complex unsteady vortical flow motions created by rotating geometries are illustrated on a cross-flow configuration.

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