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Observations reveal a novel air-side technique for measuring void fraction and bubble size in bubbly liquids, implying simpler assessments.
Many researchers have measured sound speed and attenuation in a bubbly liquid utilizing hydrophone-based techniques. Most of these efforts required an independent knowledge of the void fraction and bubble size. In the absence of imaging methods, determination of void fraction and bubble size can be inferred from the measured sound speed and attenuation. In this paper, we present our observation on utilizing a straightforward air-side technique for determining void fraction and bubble size.
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Cheyne et al. (2025) studied this question.
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