چکیده مقاله
The purpose of this study is to find forms of a transition in threshold motion To achieve this goal, a trapezoidal channel was built in the laboratory, so that a contraction transition becomes established Materials of bed and banks are made of uniform sand with median diameter 1 2 mm Critical shear stress was calculated, considering the properties of materials used in the bed and banks of the channel and then the threshold discharge was calculated Water flows through this channel for long enough to produce a graceful type The results showed that the created transition is similar to a semi parabolic and hyperbolic transition The difference between the developed transition and a semi parabolic one is the least
کلیدواژهها
نویسندگان
Ahmad Tahershamsi
Associate Professor Faculty of Civil and Environment Engineering, Amirkabir University of Technology, Tehran, Iran,
Masoume Nikfar
Master of science Faculty of Civil and Environment Engineering, Amirkabir University of Technology, Tehran, Iran
شیوه ارجاع
Tahershamsi, Ahmad and Nikfar, Masoume,1394,Experimental study of self-formed conversion in channels in threshold motion,10th International River Engineering Conference,Ahvaz
ارائهشده در
مجموعه مقالات دهمین سمینار بین المللی مهندسی رودخانه29 دی 1394 · اهواز