Numerical and asymptotic analysis of Görtler vortices generated by surface roughness.
- Resource Type
- Article
- Authors
- White, A. H.; Hall, P.; Mughal, M. S.
- Source
- AIP Conference Proceedings. Oct2013, Vol. 1558 Issue 1, p289-292. 4p. 2 Graphs.
- Subject
- Language
- ISSN
- 0094-243X
The linear growth of Go¨rtler vortices is studied using both high Reynolds number asymptotic theory and numerical approaches. Growth rates are calculated by using two different numerical methods: The linearised Navier-Stokes equations for flow over a concave wall and the equivalent high Reynolds limit, resulting in a parabolic set of equations. Asymptotic expansions are posed for the high Go¨rtler number limit and it is shown that at least two terms in the asymptotic expansion are needed in order to make quantitative comparisons to the growth rates calculated from the numerical routines. [ABSTRACT FROM AUTHOR]