期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2012
卷号：15
期号：6
出版社：IOP Publishing
摘要：Because cavitation and cavitation erosion will caused significant impact to the security and stability of hydro turbine, so changing geometric structure to redu ce the risk of cavitation is considered. Punching many holes on the hydrofoil is adopted. By using RNG κ-εturbulence model and SIMPLEC algorithm, the flow field around hydrofoil and p orous hydrofoil are simulated based co mputational fluid dynamics(CFD). The numerical simulation result--velocity and pressure field of hydrofoil with different geometry are compared and analysed. This stud y introduces geometry optimization ideas to researchers for improving cavitation phenomenon in water turbine
