Nonlinear Sciences – Pattern Formation and Solitons
Scientific paper
2002-04-09
Phys. Rev. E 65, 061509 (2002)
Nonlinear Sciences
Pattern Formation and Solitons
8 pages, 6 figures, RevTex4
Scientific paper
10.1103/PhysRevE.65.061509
A linear stability analysis of the free surface of a horizontally unbounded ferrofluid layer of arbitrary depth subjected to vertical vibrations and a horizontal magnetic field is performed. A nonmonotonic dependence of the stability threshold on the magnetic field is found at high frequencies of the vibrations. The reasons of the decrease of the critical acceleration amplitude caused by a horizontal magnetic field are discussed. It is revealed that the magnetic field can be used to select the first unstable pattern of Faraday waves. In particular, a rhombic pattern as a superposition of two different oblique rolls can occur. A scaling law is presented which maps all data into one graph for the tested range of viscosities, frequencies, magnetic fields and layer thicknesses.
Lange Adrian
Mekhonoshin V. V.
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