Abstract
Boundary layer flow visualisation methods, developed at Queen Mary and Westfield College, have been applied to a riblet surface. The results reveal cellular crossflows developing in the grooves between the riblets. These local flow regimes appear to have little direct effect on the flow in the wall layers immediately adjacent to them. Qualitatively, the behavior of the wall layers appears to be that which would be expected if a virtual surface existed at a level slightly above the riblet tops, but a tendency for the origin of longitudinal eddy pairs to become anchored to the top of a riblet is noted.
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References
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© 1990 Kluwer Academic Publishers
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Clark, D.G. (1990). Boundary Layer Flow Visualisation Patterns on a Riblet Surface. In: Coustols, E. (eds) Turbulence Control by Passive Means. Fluid Mechanics and its Applications, vol 4. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-2159-7_5
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DOI: https://doi.org/10.1007/978-94-009-2159-7_5
Publisher Name: Springer, Dordrecht
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