南京理工大学学报（自然科学版）2012，Vol.36Issue(2)：314-319,6.
绕水翼非定常云空化流动的大涡模拟
Large Eddy Simulation of Unsteady Cloud Cavitation Flow Around Underwater Hydrofoil
张木 1谭俊杰 1易文俊 2陈志华 2蔡晓伟1
作者信息
- 1. 南京理工大学能源与动力工程学院,江苏南京210094
- 2. 南京理工大学瞬态物理国家重点实验室,江苏南京210094
- 折叠
摘要
Abstract
Adopting the N-S equations,the pressure implicit split operator,the large eddg simulation turbulence model and the volume of fluid method,the characteristics of the unsteady cloud cavitation flow around the NACA0015 hydrofoil are researched in consideration of the gas-liquid phase transition. The periodic shedding process including the initial vortex, the re-entrant jet vortex, the cavity shedding and the cavity regeneration is analysed. The Strouhal number St,the dimensionless cavity length and the hydrodynamic coefficients of different cavitation numbers are calculated. The calculation agrees with the experimental results. The Kunz model and Sauer model are used to simulate the cavity shape. The results show that the two cavitation models can be well used for the cloud cavitation flow.关键词
空化/大涡模拟/流体体积法/水翼/非定常流动Key words
cavitation/large eddg simulation/volume of fluid method/hydrofoil/unsteady flow分类
数理科学引用本文复制引用
张木,谭俊杰,易文俊,陈志华,蔡晓伟..绕水翼非定常云空化流动的大涡模拟[J].南京理工大学学报（自然科学版）,2012,36(2):314-319,6.
