نتایج جستجو برای: draft tube
تعداد نتایج: 122161 فیلتر نتایج به سال:
The effects of three levels of soil moisture content (8-10, 10-12 and 12-14% d.b.) and three levels of plowing depth (15, 20 and 25 cm) on draft, specific draft and drawbar power requirement of a 7-shank chisel plow in a clay loam soil were investigated. The experimental design was a randomized complete block design with a 3×4 factorial. The effect of plowing depth on all of the parameters ment...
A Novel Guide Vane System Design to Mitigate Rotating Vortex Rope in High Head Francis Model Turbine
Guide vanes are a mechanical system used to direct flow in the desired direction. At lower operating conditions, implementing guide vane draft tube of hydro-turbine can decrease excess swirl and, thus, reduce pressure fluctuations. The present study discusses numerical methodology design an effective high head Francis model turbine. method is computationally efficient and saves computational ti...
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