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Title:
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Analysis of fourth-order accurate symmetry-preserving boundary conditions for the incompressible Navier-Stokes equations
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Author(s):
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Published by:
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Publication date:
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ECN
Wind Energy
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12-7-2010
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ECN report number:
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Document type:
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ECN-M--10-061
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Conference Paper
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Number of pages:
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Full text:
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22
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Download PDF
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Presented at: Firth European Conference on Computational Fluid Dynamics, Lisbon, Portugal, 14-17 juni 2010.
Abstract:
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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