Abstract In the present research, three different data-driven models (DDMs) are developed to predict discharge coefficient of streamlined weirs (Cdstw). Some machine-learning methods (MLMs) and intelligent optimization (IOMs) such as Random Forest (RF), Adaptive Neuro-Fuzzy Inference System (ANFIS), gene expression program (GEP) employed for prediction Cdstw. To identify input variables Cdstw b...

The purpose of this research is examining the performance rectangular broad and sharp crested weirs in terms cavity index discharge coefficient. For purpose, a computational fluid dynamics CFD code FLUENT applied. Firstly, verified by applies on experiments work Hagre et al 1994 results show excellent agreements between Hager 1994. Secondly applied both weirs. demonstrate that have lower coeffi...