Grid studies for thin-layer Navier-Stokes computations of airfoil flowfields

The purpose of this Note is to evaluate numerical errors for a range of flow cases and to reduce them to reasonable levels. This is accomplished through numerical solution-to-solution comparisons including grid-refinement studies and outer boundary-position studies. Error estimates are obtained usin...

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Bibliographic Details
Published in:AIAA journal 1992-10, Vol.30 (10), p.2561-2564
Main Author: Zingg, D. W
Format: Article
Language:English
Subjects:
Exact sciences and technology
Fluid dynamics
Fundamental areas of phenomenology (including applications)
General theory
Physics
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Summary:The purpose of this Note is to evaluate numerical errors for a range of flow cases and to reduce them to reasonable levels. This is accomplished through numerical solution-to-solution comparisons including grid-refinement studies and outer boundary-position studies. Error estimates are obtained using Richardson extrapolation. In addition to providing useful guidelines for determining the levels of grid refinement and the outer boundary position required to achieve a given level of accuracy, the grid-independent solutions obtained provide an accurate evaluation of physical-model errors.
ISSN:0001-1452
1533-385X
DOI:10.2514/3.11265