Journal
PHYSICAL REVIEW LETTERS
Volume 116, Issue 5, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.116.054501
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Funding
- Russian Scientific Foundation [14-22-00259]
- Russian Science Foundation [14-22-00259] Funding Source: Russian Science Foundation
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We demonstrate that waves excited on a fluid surface produce local surface rotation owing to hydrodynamic nonlinearity. We examine theoretically the effect and obtain an explicit formula for the vertical vorticity in terms of the surface elevation. Our theoretical predictions are confirmed by measurements of surface motion in a cell with water where surface waves are excited by vertical and harmonic shaking the cell. The experimental data are in good agreement with the theoretical predictions. We discuss physical consequences of the effect.
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