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Phenomena in bubbles cluster

Ion SimaciuZoltan BorsosViorel DraftaGheorghe Dumitrescu
Dec 2022
摘要
In this paper, we continue to demonstrate the analogy between the acousticworld and the electromagnetic world. In the paper, we derive the expressionsfor: the electro-acoustic force between the bubbles in the cluster and an outerbubble, the gravito-acoustic forces between the bubbles in the cluster andbetween the cluster and an outer bubble, the temperature corresponding to thetranslational motion of the bubbles in the cluster and the average acousticradiation pressure. The most important result is the demonstration of the factthat the modulus of the average pressure of the acoustic radiation around abubble is equal to the energy density of the electro-acoustic field, Eq. (10).These densities are the oscillation energy densities of the bubble (the liquidaround the bubble) that are involved in the interaction phenomenon between twooscillating bubbles. We have also demonstrated that the gravito -acousticforces, at resonance, between the bubbles in the cluster, generated by theabsorption of energy in the bubbles, are proportional to the square of thevirtual masses of the bubbles, Eqs ((29) and (30).
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