EFFECT OF AERATION ON CAVITATION CHARACTERISTICS OF CYLINDRICAL PROTRUSIONS WITH DIFFERENT HEIGHTS
Cavitation characteristics of high velocity flow past cylindrical protrusions with different heights in the absence and presence of aeration were experimentally investigated in a water tunnel at Zhejiang University of Technology. 2mm and 5mm high cylindrical protrusions with 6mm in diameter were employed. The air-water volume ratios of aerated flow were 0.96, 1.94, 2.96, 5.01 and 7.13%, respectively. Cavitation phenomena of cylindrical protrusions with different heights were observed. Variations of pressures with air-water volume ratio upper and lower the protrusions with different heights were measured. Variations of the corresponding cavitation numbers with air-water volume ratio for the protrusions with different heights were analyzed, and a comparison of cavitation numbers for the protrusions with different heights was made.
cylindrical protrusion air-water volume ratio cavitation number wall pressure
Zhiyong Dong Yihong Wu Dong Zhang
Hydraulic and Municipal Engineering Research Institute, Zhejiang University of Technology,Hangzhou 3 China Institute of Water Resources and Hydroelectric Power Research, Beijing 100038, 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
2157-2162
2008-10-20（万方平台首次上网日期，不代表论文的发表时间）