Abstract
The experimental simulation of solitary vortex rings in a stratified fluid performed using high-frequency echo-sounding and optical visualization methods shows that on the range from turbulent to laminar regimes the vortex is a volume inhomogeneity with a sound scattering cross-section m v∼U 5, where U is the translational velocity. The absolute value of m v is determined by the microscale component of the vortex microstructure, which is commensurable with the sounding sonic wave length.
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Mitkin, V.V., Prokhorov, V.E. & Chashechkin, Y.D. Acoustic Sounding of Vortex Rings in a Continuously Stratified Fluid. Fluid Dynamics 36, 934–943 (2001). https://doi.org/10.1023/A:1017966727089
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DOI: https://doi.org/10.1023/A:1017966727089