Numerical study of cavitator angle effect on ventilated supercavitating flow

Pham, Van-Duyen; Ahn, Byoung-Kwon; Park, Cheolsoo; Kim, Gun‐Do; Moon, Il-Sung

doi:10.1080/19942060.2023.2215297

Cited by 6 publications

(2 citation statements)

References 33 publications

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“…Pham et al studied the contours of ventilated supercavitation at different angles of attack and found that the deformation of the cavity section length is affected by the changes in the cavitator’s angle of attack. 6 Fan et al studied the effect of the tail diameter on the cavitation formation mechanism and found that the vehicle tail is the primary influence factor for the cavity around the vehicle. 7 Chen et al studied the cavitation flow characteristics of non-body-of-revolution underwater vehicles with a disk-shaped cavitator, designed a fairing-type underwater vehicle, and optimized the structural parameters of elliptical disk cavitation.…”

Section: Introductionmentioning

confidence: 99%

“…Many studies on supercavitation flow have been conducted recently, focusing on the effects of the projectile structure, the slenderness ratio, the cavitator shape, and the cavitator angle. Pham et al studied the contours of ventilated supercavitation at different angles of attack and found that the deformation of the cavity section length is affected by the changes in the cavitator’s angle of attack . Fan et al studied the effect of the tail diameter on the cavitation formation mechanism and found that the vehicle tail is the primary influence factor for the cavity around the vehicle .…”

Section: Introductionmentioning

confidence: 99%

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Influence of Periodic Disturbance Incoming Flow on the Supercavitation Phenomenon

Zeng,

Zhao,

Fan

et al. 2024

ACS Omega

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Previous studies on supercavitation flow have primarily focused on a standing water environment, neglecting the impact of periodic disturbance in a marine environment. Therefore, a series of periodic functions with different frequencies and amplitudes are defined to simulate the periodic disturbance, and a slender projectile is adopted to numerically study the effect of the periodic disturbance on the supercavitation phenomenon in this paper. Research results show that the cavity profile evolves periodically with the periodic disturbance of the external flow field. At the same time, as the frequency and amplitude increase, the minimum cavity shape gradually decreases to the point that the projectile cannot be wholly enveloped, and the maximum cavity profile gradually increases. Furthermore, the relationship between the cavity length (l i ) and the frequency (f) when the cavity cannot envelop the projectile is obtained (l i = −7.381f + 215.384). Meanwhile, the critical frequency range (7.16 ≤ f < 7.96) and amplitude range (1.1 ≤ am < 1.22) of the cavity to envelop the projectile are obtained. The key factors of periodic disturbances on supercavitation flow are revealed in this paper, which provides a theoretical foundation for maintaining supercavitation flow stability in an environment of periodic disturbance flow.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%