Numerical Calculation of Water Exit Process of Supercavitating Vehicles under Different Sailing Conditions

The water exit process of vehicles is very complicated, accompanied by multiphase flow, cavitation, phase transition, and turbulence instability, and the applied force is highly unsteady and nonlinear. At present, studies on the water exit problem of the vehicle with cavitation focus on the vertical...

Full description

Saved in:
Bibliographic Details
Published in水下无人系统学报 Vol. 32; no. 3; pp. 496 - 506
Main Authors Yue CHU, Pingan LIU, Xi HUANG, Song GAO, Zhentao JI, Xiaohu ZHOU
Format Journal Article
LanguageChinese
Published Science Press (China) 01.06.2024
Subjects
overlapping grid
supercavitating vehicle
water exit
Online AccessGet full text

Cover

More Information
Summary:The water exit process of vehicles is very complicated, accompanied by multiphase flow, cavitation, phase transition, and turbulence instability, and the applied force is highly unsteady and nonlinear. At present, studies on the water exit problem of the vehicle with cavitation focus on the vertical or oblique water exit, emphasizing the trajectory and attitude of the vehicle. There are few studies on the water exit process of the supercavitating vehicle. In this paper, based on STAR-CCM+ software, overlapping grid technology was used for meshing, and the volume of fluid(VOF) model was used to capture the gas-liquid interface. The Schnerr-Sauer model described the cavitation process around the vehicle, and a numerical calculation model of the water exit process of the vehicle was established. The water exit process of the vehicle under different sailing conditions(initial velocity, initial water depth, and ventilation) was simulated and calculated, and the flow field and cavity evolution laws under different
ISSN:2096-3920
DOI:10.11993/j.issn.2096-3920.2024-0017