The development of G6rtler vortices in wall jet flow over curved surfaces is considered in both the linear and nonlinear growth r~gimes. It is shown, using asymptotic methods based on the largeness of the wavenumber of the vortices, that this hydrodynamic instability is prone to occur more readily o
Instabilities in the Görtler model for wall bounded flows
✍ Scribed by I.H. Herron; A.D. Clark
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 329 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0893-9659
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✦ Synopsis
The original G6rtler model is analyzed with no-slip boundary conditions on the wall. These conditions have historically been the most difficult to treat. It is proved that the principle of exchange of stabilities holds~ that is, the first unstable eigenvalue has imaginary part equal to zero. The techniques used involve factoring positive operators. (~) 2000 Elsevier Science Ltd. All rights reserved.
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