Abstract
The stability of flow formed by intersection of two perpendicular flatplates is revisited through a study of the sensitivity to the base flow variation. After a brief presentation of the asymptotic regime, sensitivity functions underlying corner mode (concentrated close to the intersection) and Tollmien-Schlichting modes, with different obliqueness angles, are computed.With this consideration, associated mechanisms as well as active regions are identified, which further confirm that the sensitivity area of the corner mode arises along the intersection of flat plates. Then, an optimization technique shows that a small deviation of the reference field in the area of uncertainty observed in experiments leads to decrease critical Reynolds number. A hypothesis based on the onset of an inflectional mechanism is thus proposed to explain the experimental results.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Parker J., and Balachandar, S. (1999) Viscous and inviscid instabilities of flow along a stream-wise corner. Theoret. Comput. Fluid Dynamics, 13:231–270.
Zamir M. (1980) Similarity and stability of the laminar boundary layer in a streamwise. Proc. R. Soc. Lond. A, 377:269–288.
Bottaro A., Corbett, P. and Luchini, P. (2003) The effect of base flow variation on flow stability. J. Fluid Mech., 476:293–302.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2010 Springer Science+Business Media B.V.
About this paper
Cite this paper
Alizard, F., Robinet, JC., Rist, U. (2010). Sensitivity to base-flow variation of a streamwise corner flow. In: Schlatter, P., Henningson, D. (eds) Seventh IUTAM Symposium on Laminar-Turbulent Transition. IUTAM Bookseries, vol 18. Springer, Dordrecht. https://doi.org/10.1007/978-90-481-3723-7_9
Download citation
DOI: https://doi.org/10.1007/978-90-481-3723-7_9
Published:
Publisher Name: Springer, Dordrecht
Print ISBN: 978-90-481-3722-0
Online ISBN: 978-90-481-3723-7
eBook Packages: EngineeringEngineering (R0)