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10:45
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)


Abstract:
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.