%A Wang Fujun, Bai Mianmian, Xiao Ruofuª¤ %T Analysis on hydraulic transients of pumping station with Flowmaster %0 Journal Article %D 2010 %J Journal of Drainage and Irrigation Machinery Engin %R 10.3969£¯j.issn.1674¡ª8530.2010.02.012 %P 144-148 %V 28 %N 2 %U {http://zzs.ujs.edu.cn/pgjx/CN/abstract/article_242.shtml} %8 2010-03-30 %X Some key issues for the application of Flowmaster on the hydraulic transients calculation of pumping station were analysed. The modelling method of some basic components, such as pipe, pump, valve, air valve was proposed. Models of tunnel and surge tank, which are not provided by Flowmaster, were investigated. The tunnel was modeled by introducing a pressure correction factor in the pipe model. By modifying the reservoir model and combining input and output coefficient, the surge tank was mo delled. The proposed model and method were demonstrated in a domestic pump station. The hydraulic transients during pump start and stop were calculated, and the pressure variation along the pipe and tunnel was given. There is a serious negative pressure in the upstream of the pumping station when pump starts, and a reverse flow when pump stops without valve closure. Those phenomena are avoided by optimizing valve action and adding air valves.ª¤