EXPERIMENTAL STUDY OF AERATED TWO-PHASE FLOW PATTERNS IN TANDEM CASCADE
Difficulty of aerated two-phase flow study lies in the complex flow mechanism and strict experiment requirments. Here controllable aerated two-phase flow passing through the cascade assembled by three Hydrofoil 915 foils is studied. Flow patterns are focused and mutual interactions between solid boundary and flow are described. An experimental rig is built and three hydrofoils are placed with different configurations in a transparent part of the circulation system. High speed photography technique is adopted to record the transient variations of the bubbly flow patterns. A computer aided data collection system is installed to record the data signals and store them into a database. The experimental results show: (1)general flow patterns exist in the flow passing through the tandem cascade; (2)near the trailing edges, intense interaction can be found among wake vortices, trailing jet and pressure gradient; (3)different types of cavitation evolution are predicted to occur at different parts of the cascade.
aerated two-phase flow tandem cascade flow pattern ezperiment
Can Kang Minguan Yang
School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China
国际会议
第16届亚太地区国际水利学大会暨第3届水工水力学国际研讨会(16th IAHR-APD Congress and 3rd Symoposium of IAHR-ISHS)
南京
英文
2146-2151
2008-10-20（万方平台首次上网日期，不代表论文的发表时间）