Cavitation Pattern Visualization and Measurement of Lift and Drag for Two-Dimensional Hydrofoils

• Main Authors: C.W. Liu, 劉志偉
• Other Authors: J.L. Hwang
• Format: Others
• Language: zh-TW
• Published: 1999
• Online Access: http://ndltd.ncl.edu.tw/handle/15563097663913290407

碩士 === 國立臺灣大學 === 造船及海洋工程學研究所 === 88 === A cavitation flow visualization and lift-drag measurement system are set up in cavitation tunnel. Two sub-cavitation and three super-cavitation hydrofoils of 30 cm in span and 18 cm in chord are tested in non-cavitation，partial-cavitation and super-cavitation condition in the cavitation tunnel of NTU-INAOE . The lift and drag coefficients with relation to angle of attack and cavitation number are given. From comparison of drag-lift ratio with relation to lift coefficient, it is shown that the SUS section and 3-term section are better than that of Cupped section.