Wave-vortex interaction
Fluid Dynamics
2015-05-13 v1 Classical Physics
Abstract
We present an experimental study on the effect of a electromagneticaly generated vortex flow on parametrically amplified waves at the surface of a fluid. The underlying vortex flow, generated by a periodic Lorentz force, creates spatio-temporal fluctuations that interact nonlinearly with the standing surface waves. We characterize the bifurcation diagram and measure the power spectrum density (PSD) of the local surface wave amplitude. We show that the parametric instability threshold increases with increasing intensity of the vortex flow.
Cite
@article{arxiv.0904.3139,
title = {Wave-vortex interaction},
author = {Claudio Falcón and Stéphan Fauve},
journal= {arXiv preprint arXiv:0904.3139},
year = {2015}
}
Comments
8 pages, 10 figures, submitted to Phys. Rev. E