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Some observations on grid convergence

✍ Scribed by Manuel D. Salas

Publisher
Elsevier Science
Year
2006
Tongue
English
Weight
165 KB
Volume
35
Category
Article
ISSN
0045-7930

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✦ Synopsis

It is claimed that current practices in grid convergence studies, particularly in the field of external aerodynamics, are flawed. The necessary conditions to properly establish grid convergence are presented. A theoretical model and a numerical example are used to demonstrate these ideas. It is shown that anomalously low or high observed convergence rates can be exhibited by otherwise well-behaved algorithms because of improper use of grid refinement ratios in different directions.

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