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Thermal effects and damping mechanisms in the forced radial oscillations of gas bubbles in liquids
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1977
Year
Cavitating FlowBubble DynamicEngineeringForced Radial OscillationsHydrodynamic CavitationFluid MechanicsGas DynamicRheologyGas-liquid FlowThermodynamicsThermal Damping ConstantMultiphase FlowHeat TransferGas BubblesLinearized TheoryThermal Effects
The study presents a linearized theory of forced radial oscillations of a gas bubble in a liquid, focusing on thermal effects. The authors develop a linearized model, illustrated with graphs and tables, and apply it to any noncondensing gas–liquid pair, including a detailed case of an air bubble in water. The effective polytropic exponent and thermal damping constant vary strongly with driving frequency.
A linearized theory of the forced radial oscillations of a gas bubble in a liquid is presented. Particular attention is devoted to the thermal effects. It is shown that both the effective polytropic exponent and the thermal damping constant are strongly dependent on the driving frequency. This dependence is illustrated with the aid of graphs and numerical tables which are applicable to any noncondensing gas–liquid combination. The particular case of an air bubble in water is also considered in detail.