List of Articles Discharge coefficient Open Access Article Abstract Page Full-Text 1 - Experimental Study of Discharge Doefficient of the Groove upstream of Concrete-Face Rockfill Dam (using Hydraulic Models) zahra rahiminejad sayed habib musavi-jahromi Amir Khosrojerdi Hossien Hassanpour Darvishi Jamal Mohammad Vali Samani 10.30495/wsrcj.2021.18081 Open Access Article Abstract Page Full-Text 2 - Increasing the water discharge coefficient of piano key weirs using physical models Vafa Rezaei Sayed Habib Musavi-Jahromi Amir Khosrowjerdi Hossein Sedghi Open Access Article Abstract Page Full-Text 3 - Comparison of Channel Geometry Effects on Discharge Coefficient of Rectangular Side Weirs in Rectangular and Trapezoidal Channels Using Optimized Machine Learning Models Kiyoumars Roushangar Aydin Panahi