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15 mins
Turbulent wakes of plates with non-equilibrium similarity scalings
Martin Obligado, John Christos Vassilicos
Session: Jets and Wakes 1
Session starts: Tuesday 25 August, 10:30
Presentation starts: 10:45
Room: Room E

Martin Obligado (Imperial College London)
John Christos Vassilicos (Imperial College London)

We have conducted hot wire anemometry measurements of six different axisymmetric turbulent wakes which demonstrate the existence in all these wakes of non-equilibrium mean flow profile scalings and of the underlying self-preservation and non-equilibrium dissipation scalings. These mean flow profile scalings are different from those of all documented canonical boundary-free turbulent shear flows to date, all of which have been established for very far downstream regions.