Influence of acoustic fields on drop dynamics in an acoustic resonator |
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Authors: | T Yamanaka H Kamimura |
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Institution: | National Aerospace Laboratory, Chofu, Tokyo, Japan |
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Abstract: | Capillary waves on a liquid sphere may be excited by acoustic fields, especially due to the higher harmonics of the resonant acoustic fields. The growth of the capillary waves has been analytically discussed. For a manipulation of weightless molten material without contacts, rotation of a liquid drop by acoustic waves is important. Approximate solutions to govern the dynamics of capillary waves on a rotating liquid drop has been analytically derived. Instabilities of multi-lobed waves due to a rotational flow in the perturbed flow field and due to the acoustic fields have been discussed. |
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