Delaying transition in rotating boundary-layer flows

Paul T. Griffiths, Stephen J. Garrett, S. O. Stephen

Research output: Chapter in Book/Published conference outputConference publication


We investigate both the type I and II modes of stationary instability within the boundary-layer flow over a rotating disk. Extending the work of previous studies we find that the flow can be stabilised via the introduction of shear-thinning non-Newtonian fluids. Laminar-flow profiles are determined from a generalised von K ́arm ́an similarity solution. An asymptotic study is presented in the limit of large Reynolds number and a numerical investigation which includes the effects of streamline curvature and Coriolis force is also conducted. Favourable agreement is obtained between solutions from the two schemes. Results indicate that the transition process from laminar to turbulent flow can be significantly delayed, in this case at least. Such a study is presented with a view to suggesting potential control
mechanisms in aerodynamically-significant flows.
Original languageEnglish
Title of host publicationProceedings of the 45th AIAA Fluid Dynamics Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc. (AIAA)
Number of pages6
ISBN (Print)9781624103629
Publication statusPublished - 2015


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