University of Cambridge > Talks.cam > Isaac Newton Institute Seminar Series > Riblets drag reduction and rough-wall heat transfer according to minimal channels

Riblets drag reduction and rough-wall heat transfer according to minimal channels

Add to your list(s) Download to your calendar using vCal

If you have a question about this talk, please contact nobody.

TURW04 - Wall-bounded turbulence: beyond current boundaries

Minimal-channel direct numerical simulations are enabling us to advance beyond the current boundaries of where we stand on rough-wall turbulence. Because minimal channels resolve only the near-wall turbulence, they are computationally efficient and thus allow us to probe unprecedented flow regimes and numbers of surfaces that alter drag and heat transfer. With these large data sets, we can assess flow mechanisms generally towards developing robust predictive models. Here, I will discuss the Kelvin-Helmholtz instability that can limit the drag-reduction performance of riblets and our efforts to replicate the Dipprey and Sabersky (1963) data that is widely used to calibrate heat and mass transfer models in the fully rough regime.

This talk is part of the Isaac Newton Institute Seminar Series series.

Tell a friend about this talk:

This talk is included in these lists:

Note that ex-directory lists are not shown.

 

© 2006-2022 Talks.cam, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity