چکیده مقاله
The simple structure and great amount of energy dissipation in the stepped spillways have made them be used in great amounts in dams Due to the dissipation of a significant amount of energy along the spillway, we usually do not need to build stilling basin downstream of the dam In this research, the effect of continuous obstacle with the identical relative height of 0 19, 0 38, and 0 55 on the edge of 4 steps stepped spillway in all the three flow regimes of Nappe, transitional, and skimming has been studied and compared to the similar modes of 8 steps ones The results show that the continuous obstacle on the edge of the steps can generally make the flow change into a skimming state with a passing flow lower than the flat step For the dissipation of energy, we only saw the positive effect in the Nappe flow comparing the flat step, and this effect is negative for the other regimes This effect has been increased along with the increment of the identical relative height
کلیدواژهها
نویسندگان
Kamyab habibi
Master of water and hydraulic structures, Behbahan Khatam Alanbia University of Technology
Farinaz Erfani fard
Postgraduate student of water and hydraulic structures, Behbahan Khatam Alanbia University of Technology
Seyed Amin Asghari pari
Associate Professor of Civil Engineering, Behbahan Khatam Alanbia University of Technology
شیوه ارجاع
habibi, Kamyab and Erfani fard, Farinaz and Asghari pari, Seyed Amin,1400,The laboratory investigation of the effect of continuous obstacles on the edge of small-scaled stepped spillway on the hydraulic characteristics and energy dissipation,12th International River Engineering Conference
ارائهشده در
مجموعه مقالات دوازدهمین سمینار بین المللی مهندسی رودخانه4 بهمن 1400 · اهواز