چکیده

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 flows 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.

کليدواژه ها

stepped spillways energy dissipation continuous obstacle relative height of the obstacle

کد مقاله / لینک ثابت به این مقاله

برای لینک دهی به این مقاله، می توانید از لینک زیر استفاده نمایید. این لینک همیشه ثابت است :

نحوه استناد به مقاله

در صورتی که می خواهید در اثر پژوهشی خود به این مقاله ارجاع دهید، به سادگی می توانید از عبارت زیر در بخش منابع و مراجع استفاده نمایید:
سید امین اصغری پری , 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 , دوازدهمین کنفرانس بین المللی مهندسی رودخانه