Abstract
Numerical investigations of the impact of riblets on natural transition in a temporal evolving channel flow have been performed. A set of riblet geometries are used for two different Reynolds numbers. The results show that transition is accelerated by all riblets compared with a smooth surface. This acceleration is caused by an amplification of the two-dimensional Tollmien-Schlichting (TS) waves by riblets, where the amplification magnitude dependeds on the specific geometry of the riblets.
This is a preview of subscription content, log in via an institution to check access.
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
Bechert, D.W., Bruse, M., Hage, W., van der Hoeven, J.G.T., Hoppe, G.: Experiments on drag-reducing surfaces and their optimization with an adjustable geometry. J. Fluid Mech. 338, 59–87 (1997)
Grek, G.R., Kozlov, V.V., Titarenko, S.V.: An experimental study of the influence of riblets on transition. J. Fluid Mech. 315, 31–149 (1996)
Klumpp, S., Meinke, M., Schröder, S.: Numerical simulation of riblet controlled spatial transition in a zero-pressure gradient boundary layer. Flow, Turbulence and Combustion (submitted)
Ladd, D.M., Rohr, J.J., Reidy, L.W., Hendricks, E.W.: The effect of riblets on laminar to turbulent transition. Experiments in Fluids 14, 1–2 (1993)
Litvinenko, Y.A., Chernoray, V.G., Kozlov, V.V., Loefdahl, L., Grek, G.R., Chun, H.H.: The influence of riblets on the development of a Λ structure and its transformation into a turbulent spot. Physics - Doklady 51, 144–147 (2006)
Schlatter, P., Stolz, S., Kleiser, L.: Computational simulation of transitional and turbulent shear flow. In: Progress in Turbulence, Proceedings iTi Conference on Turbulence (2005)
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2009 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Klumpp, S., Meinke, M., Schröder, W. (2009). LES of Riblet Controlled Temporal Transition of Channel Flow. In: Peinke, J., Oberlack, M., Talamelli, A. (eds) Progress in Turbulence III. Springer Proceedings in Physics, vol 131. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-02225-8_44
Download citation
DOI: https://doi.org/10.1007/978-3-642-02225-8_44
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-02224-1
Online ISBN: 978-3-642-02225-8
eBook Packages: EngineeringEngineering (R0)