ANALYSIS ON PRESSURE-FALLING PHENOMENON CAUSED BY AIR CHAMBER IN PRESSURED WATER SUPPLY PIPE
Air tends to accumulate at the vertex or the inflexion place of the pipeline in pressured water supply system. Air chambers will lead to the pressure losing. Research of the air chambers influence will contribute to a more complete and accurate hydraulic calculation. This paper analyzed the pressure-falling phenomenon caused by air chamber in quantificational, deduced two calculation formulas for pressure loss in static state and dynamic state, and discussed application of the formulas in especial states. The research indicate that the water head loss equals height difference between the front and back end of an air chamber, and it is a solution of a quartic equation of one variable in steady-state flow.
hydraulic calculation air chamber pressure-falling phenomenon water supply system pressure loss
Haibo Jiang Xiangdong Zhao
Thermal Engineering department, Tsinghua University, Beijing 100084, China Tianjin campus, Naval Uni Tianjin campus, Naval University of Engineering, Tianjin 300450, 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
2129-2133
2008-10-20（万方平台首次上网日期，不代表论文的发表时间）