| Abstract: | The possibilities of remote acoustic diagnostics of flows are experimentally and theoretically studied. A Karman vortex street behind a cylinder is used as a model. The vortex temperature exceeded that of the surrounding medium. A laboratory experiment carried out in a low-turbulence wind tunnel at Re 100 has shown that vorticity, stall rate, spatial period, and vortex temperature can be found from the characteristics of sound scattered by the flow.Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod. Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 38, No. 8, pp. 832–840, August, 1995. |
