Semi-meshless stencil selection for anisotropic point distributions

Meshless methods are attractive for simulating moving body problems. The selection of the stencils over the domain for the meshless solver is crucial for the method to be competitive with established computational fluid dynamics techniques. Stencil selection is relatively straightforward if the poin...

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Bibliographic Details
Published in:International journal of computational fluid dynamics 2012-10, Vol.26 (9-10), p.463-487
Main Authors: Kennett, D.J., Timme, S., Angulo, J., Badcock, K.J.
Format: Article
Language:English
Subjects:
Anisotropy
Euler equations
Fluid dynamics
meshless
moving body
multibody systems
Navier-Stokes equations
Simulation
stencil selection
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Summary:Meshless methods are attractive for simulating moving body problems. The selection of the stencils over the domain for the meshless solver is crucial for the method to be competitive with established computational fluid dynamics techniques. Stencil selection is relatively straightforward if the point distributions are isotropic in nature, however, this is rarely the case in computations that solve the Navier-Stokes equations. In this paper, a fully automatic method of selecting the stencils from anisotropic point distributions, which are obtained from overlapping structured grids, is outlined. The original connectivity and the concept of a resolving direction are used to help construct good quality stencils with limited user input.
ISSN:1061-8562
1029-0257
DOI:10.1080/10618562.2012.744450