Wall-bounded turbulence: Experiments and perspectives – Ivan Marusic (University of Melbourne)

January 4, 2022 @ 1:00 pm – 2:00 pm
Seminar Room 1
Newton Institute

In this talk we survey experimental issues in the field of wall turbulence. Wall-bounded turbulent flows, by their definition, are characterised by the close proximity of a surface (or “wall”). This results in a flow that is highly anisotropic, making measurements, particularly near the surface, highly challenging to undertake. This is further exacerbated as the Reynolds number increases to large values, such as those encountered in many important practical applications. The past decade or so has seen significant advances in our capabilities to make high-fidelity measurements of the three components in velocity and vorticity, in space and time, and of the wall-shear stress in high Reynolds number wall-turbulence. This progress has resulted from both the development of new high Reynolds number facilities and advances in measurement techniques. Findings from the experiments will be discussed and implications for future work will be considered.

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