2023
DOI: 10.1017/flo.2023.2
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Dynamics of cavity structures and wall-pressure fluctuations associated with shedding mechanism in unsteady sheet/cloud cavitating flows

Abstract: The physics and mechanism of sheet/cloud cavitation in a convergent–divergent channel are investigated using synchronized dynamic surface pressure measurement and high-speed imaging in a water tunnel to probe the cavity shedding mechanism. Experiments are conducted at a fixed Reynolds number of Re = 7.8 × 105 for different values of the cavitation number σ between 1.20 and 0.65, ranging from intermittent inception cavitation, sheet cavitation to quasi-periodic cloud cavitation. Two distinct cloud cavitation re… Show more

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Cited by 3 publications
(1 citation statement)
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“…In this study, the Zwart-Gerbera-Belamri (ZGB) cavitation model was employed. This model is based on a simplified Rayleigh-Plesset(R-P) equation for a single bubble [39] , [40] , [41] . The simplified R-P equation is as follows(Eq.…”
Section: Numerical Methods and Boundary Conditionsmentioning
confidence: 99%
“…In this study, the Zwart-Gerbera-Belamri (ZGB) cavitation model was employed. This model is based on a simplified Rayleigh-Plesset(R-P) equation for a single bubble [39] , [40] , [41] . The simplified R-P equation is as follows(Eq.…”
Section: Numerical Methods and Boundary Conditionsmentioning
confidence: 99%