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/content/aip/journal/pof2/25/11/10.1063/1.4833435
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/content/aip/journal/pof2/25/11/10.1063/1.4833435
2013-11-22
2016-09-25

Abstract

We present velocity field measurements showing the instability of the radial flow over a rotating disk in a separated flow due to an edgewise freestream. A uniform edgewise stream significantly modifies the radial jet profile. Under separated flow conditions, co-rotating vortical structures form at the edge of the radial jet layer. The results establish that the discrete structures formed in the breakup of the radial flow layer on a rotor blade in retreating blade stall are also seen in the case of flow over a rotating disk.

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