The use of wavelet-artificial neural network and adaptive neuro-fuzzy inference system models to predict monthly precipitation
الموضوعات :مجتبی ابراهیمی 1 , رضا محمد پور 2
1 - دانشجوی دکتری، گروه مهندسی آب و سازه های هیدرولیکی، واحد استهبان، دانشگاه آزاد اسلامی، استهبان، ایران.
2 - استادیار و عضو هیات علمی، واحد استهبان، دانشگاه آزاد اسلامی، استهبان، ایران.
الکلمات المفتاحية: Butterfly valve, Numerical modeling, مدل سازی عددی, Valves gate, Model k-&epsilon, , Turbulence, دریچه شیر, مدل k-&epsilon, و تلاطم, شیر پروانه ای,
ملخص المقالة :
In water supply systems, One of the most important components as safety unit and the current controller (Switching flow and regulate the amount of flow) used in the arrangement of lines of water. In this study, according to multiple ponds in Tanguiyeh dam water pipeline to industrial and mining company Gol Gohar Sirjan Butterfly valve used in these ponds using Fluent software simulation has been the case. Flow characteristics such as speed, pressure and turmoil in the different modes of separation is studied. Current results show that Speed in opening and closing the valve will be rises. In the study of pressure was also observed that by closing valves pressure reduced in the gate valves.
احمدی، م، م. و ابراهیمی، م. (1395). شبیه‌سازی جریان عبوری از شیر پروانه‌ای. همایش ملی آب و سازه‌های هیدرولیکی، دانشگاه آزاد اسلامی واحد دزفول.
American Water Works Association, (AWWA). (2001). Butterfly valves Torque, head loss cavitation, Technical Report M49, American Water Works Association.
Ellis, J. and Mualla, W. (1984). Behavior of Safty Butterfly Valves, Water Power And Dam Construction,121, pp: 26-31.
Dawy, A., Sharara, A. and Hassanm, aA. (2013). A Numerical Investigation Of The Incompressible Flow Throught A Butterfly Valve Using CFD.
Sollie, C. and Danson, F. (1999). Torque Action On A Butterfly Valve. Comparison And Choice Of A Torque Coefficient, Journal Of Fluids Engineering, 121, pp: 914-917.
