Structure of vortices in a karman street behind a heated cylinder
The velocity and temperature fields in a wake behind a heated cylinder are investigated for Reynolds numbers in the interval 65<Re<110. Spatial distributions of the amplitudes and phases of the first harmonics of velocity and temperature fluctuations in the region of formation of a vortex street are determined. A simple kinematic model is constructed to explain the evolution of the phase difference of the first harmonics of velocity and temperature fluctuations with increasing distance from the cylinder.
Ezersky
AB
Institute of Applied Physics, Russian Academy of Science, 46 Uljanov Street, 603600 Nizhny Novgorod, Russia.
Lecordier
JC
Paranthoen
P
Soustov
PL