A method for ventilated cavitation based on preconditioning
while the ventilation is considered, a numerical method, based on preconditioning, including a flux difference scheme similar to Roe scheme, a modified k-ω turbulent model, and a dual-time implicit LU-SGS method, is developed to simulate both two-dimension and three-dimension configurations.As for NACA0012 hydrofoil, all-wet and natural cavitation flows are computed and the results are in agreement with experimental data.As for three-dimension hemispherical body, the multi-block parallel program is developed.Both all-wet and natural cavitation are first computed and the cavitation flow results with cavitation number of 0.3 and 0.4 accord to experimental data, which proves that the set of method for two and three dimensional configurations is reliable.Meanwhile, the ventilated cavitation flow is also computed.The draft coefficient decreases with the increase of ventilated volume.
Preconditioning natural cavitation ventilated cavitation cavitation model
Guoliang Li Jing Xie Qiang Liu Qing Shang
China Academy of Aerospace Aerodynamics, Beijing 100074, China Research & Development Center, China Academy of Launch Vehicle Technology, Beijing 100076, China
国际会议
The Second Conference of Global Chinese Scholars on Hydrodynamics(第二届全球华人水动学学术会议)
江苏 无锡
英文
309-314
2016-11-11（万方平台首次上网日期，不代表论文的发表时间）