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.
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Additional information
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.
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Ezerskii, A.B., Zobnin, A.B. & Soustov, P.L. Remote acoustic diagnostics of a wake behind a heated cylinder. Radiophys Quantum Electron 38, 546–550 (1995). https://doi.org/10.1007/BF01037704
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DOI: https://doi.org/10.1007/BF01037704