مرکز منطقه ای اطلاع رساني علوم و فناوري -

چكيده لاتين :

In the present study based upon the dimensional similitude, two models have been developed for calculation of energy dissipation which is correlated with some dimensionless parameters. To find the unknown coefficients of these equations, several physical models have been established in the hydraulic laboratory. Several small and large stepped spillways (with average slope of 15 and 25°) have been installed in the laboratory flume constructed in the hydraulic laboratory, Shahid Chamran University, Iran. Several hydraulic parameters have been measured which are used for optimization of noted unknown coefficients. The results of the developed models have been compared with the observed data and the previous studies results in the literature. The comparative study shows a very good agreement exists between the results of this study with those from observation and reported in the literature. Besides to experimental study, ANSYS has been employed to simulate the experimental data and their related results. This study shows that ANSYS is able to predict results almost the same as experimental findings with less than 6% error.