ECN publication
Analysis of fourth-order accurate symmetry-preserving boundary conditions for the incompressible Navier-Stokes equations
Sanderse, B.; Koren, B.
Published by: Publication date:
ECN Wind Energy 12-7-2010
ECN report number: Document type:
ECN-M--10-061 Conference Paper
Number of pages: Full text:
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Presented at: Firth European Conference on Computational Fluid Dynamics, Lisbon, Portugal, 14-17 juni 2010.

In this paper we investigate symmetry-preserving boundary conditions for a fourth-order symmetry-preserving finite volume method, to able to do accurate turbulence simulations for wind-turbine wake applications. It is found that the use of Dirichlet conditions limits the fourth-order method to (at most) second order. However, on properly chosen non-uniform grids, fourth-order behavior can be displayed on coarse grids, which can make the method attractive for simulations of turbulent flow.

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