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Orthogonal grid generation for Navier–Stokes computations

✍ Scribed by Manoj T. Nair; T. K. Sengupta

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
404 KB
Volume
28
Category
Article
ISSN
0271-2091

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✦ Synopsis

Body conforming orthogonal grids were generated using a fast hyperbolic method for aerofoils, and were used to solve the Navier-Stokes equation in the generalized orthogonal system for the first time for time accurate simulation of incompressible flow. For grid generation, the Beltrami equation and the definition equation for the orthogonality are solved using a finite difference method. The grids generated around aerofoils by this method have better orthogonality than the results published by earlier investigators. The Navier-Stokes equation at Reynolds numbers of 3000 and 35000 for NACA 0012 and NACA 0015 respectively, have been solved as an application. The obtained results match quite well with the corresponding experimental results.

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