Numerical simulation of the effects of passive flow control techniques on hydrodynamic performance improvement of the hydrofoil

作     者：Kundu, Parikshit 

作者机构：Indian Inst Technol Kharagpur Dept Ocean Engn & Naval Architecture Kharagpur 721302 W Bengal India 

出 版 物：《OCEAN ENGINEERING》 (海洋工程)

年 卷 期：2020年第202卷第0期

页      面：107108-000页

核心收录：

学科分类：07[理学] 0707[理学-海洋科学] 0824[工学-船舶与海洋工程] 0814[工学-土木工程] 

基　　金：Department of Ocean Engineering and Naval Architecture Department 

主　　题：Passive flow control Hydrofoil Hydrodynamic performance Lift and drag coefficient 

摘      要：Efficient hydrofoil design is a massive challenge for the current turbine blade designers. Flow separation on the suction side of the hydrofoil reduces the hydrodynamic performance of the current turbine. In this paper, the combined effects of dimple with vortex generators and dimple with tubes on S1210 hydrofoil is numerically studied and compared with baseline hydrofoil. The lift coefficient values increased at a higher angle of attack, and the stall angle is delayed from 10 degrees to 12 degrees. Maximum glide ratio increments are 132% and 144% at an angle of attack of 12 degrees for outward dimple with tubes and outward dimple with vortex generators respectively. The findings will be helpful to design a stronger blade profile for the current turbine.