Results 11 to 20 of about 479 (201)

Numerical study of cavitator angle effect on ventilated supercavitating flow

open access: yesEngineering Applications of Computational Fluid Mechanics, 2023
Despite decades of rigorous research into supercavitating flow, there is still a lack of in-depth knowledge on the properties of ventilated supercavitation with cavitators of varying angle of attack.
Van-Duyen Pham   +4 more
doaj   +2 more sources

A Comparative Assessment of Various Cavitator Shapes for High-speed Supercavitating Torpedoes: Geometry, Flow-physics and Drag Considerations [PDF]

open access: yesJournal of Applied Fluid Mechanics
Modern underwater warfare necessitates the development of high-speed supercavitating torpedoes. Achieving supercavitation involves integrating a cavitator at the torpedo's front, making cavitator design a critical research area.
K. Gaurav, N. Venkatesh, A. Karn
doaj   +2 more sources

Multiphase Flow Simulation of ITTC Standard Cavitator for Underwater Radiated Noise Prediction [PDF]

open access: yesJournal of Marine Science and Engineering, 2023
This work focuses on the main issues related to noise measurements in cavitation tunnels. The scope of the paper is to twofold: to obtain a better understanding on the main phenomena underlying experiments and to define consistent cavitation tunnel ...
Antti Hynninen   +5 more
doaj   +2 more sources

Experimental and numerical study on the oblique water-entry impact of a cavitating vehicle with a disk cavitator

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2019
In this paper, the oblique water-entry impact of a vehicle with a disk cavitator is studied experimentally and numerically. The effectiveness and accuracy of the numerical simulation are verified quantitatively by the experiments in this paper and the ...
Cheng Chen   +3 more
doaj   +2 more sources

Experimental and numerical studies on super-cavitating flow of axisymmetric cavitators

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2010
Recently underwater systems moving at high speed such as a super-cavitating torpedo have been studied for their practical advantage of the dramatic drag reduction.
Byoung-Kwon Ahn   +2 more
doaj   +3 more sources

Experimental and numerical study on flow dynamics and universal characteristics of ventilated supercavities behind different cavitators

open access: yesInternational Journal of Naval Architecture and Ocean Engineering
In this study, physical aspects of a ventilated supercavity behind different cavitator geometries such as the hydrodynamic characteristics, distribution of pressure within the cavity, hysteresis phenomenon, and gas leakage mechanism were qualitatively ...
So-Won Jeong   +3 more
doaj   +2 more sources

Experimental Study on Morphological Characteristics of Ventilated Supercavity of Double Disc Cavitator Projectile

open access: yesXibei Gongye Daxue Xuebao, 2019
Based on the principle of independence of cavity sections expansion, a double disc cavitator for underwater projectiles is proposed in this paper.The high-speed water tunnel experiment is carried out to study the generation and morphological ...

doaj   +2 more sources

Compressible Two-Phase Viscous Flow Investigations of Cavitation Dynamics for the ITTC Standard Cavitator

open access: yesApplied Sciences, 2020
In this paper, the ITTC Standard Cavitator is numerically investigated in a cavitation tunnel. Simulations at different cavitation numbers are compared against experiments conducted in the cavitation tunnel of SVA Potsdam.
Ville M. Viitanen   +3 more
doaj   +2 more sources

Prediction of the unsteady ventilated partial cavities [PDF]

open access: yesMechanics and Advanced Technologies, 2020
Approximate methods of computing the unsteady ventilated partial cavities created on both the plane and the cylindrical streamlined surfaces have been developed.
Volodymyr Semenenko, Olena Naumova
doaj   +2 more sources

Modeling the inside defect of the jet cavitator

open access: yesAdvanced Engineering Research, 2018
Introduction. The investigation of the hydrodynamic cavitator operation used under the erosion impact on a solid body surface, and of the device structure optimization for increasing the damage capability of the cavitating jet is presented. The effect of
A. I. Ukolov, V. P. Rodionov
doaj   +2 more sources

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