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How quasi-steady is the modulation of near-wall turbulence by large-scale structures?

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TURW04 - Wall-bounded turbulence: beyond current boundaries

Authors: Sergei Chernyshenko and Yunjiu Yang (Imperial College) The idea that the near-wall turbulence quasi-steadily adjusts itself to the large-scale component of the wall friction, if formulated in a mathematically rigorous form, allows nontrivial quantitative predictions. However, the actual modulation effect is only approximately quasi steady. This talk will describe the current state of the theory, and then focus on the limits of its applicability. A brief review of the theory will be given. Applications to all three velocity components will be considered, and comparisons with direct numerical calculations and experiments will be made.

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

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