Akademik Veri Yönetim Sistemi
FLOW MEASUREMENT AND INSTRUMENTATION, cilt.110, 2026 (SCI-Expanded, Scopus)
Radial gates are commonly used for flow control over spillways. In the design stage, empirical equations obtained from experimental data available in the literature are used to calculate the discharge at partial gate openings for free orifice flow conditions. However, there are some discrepancies between the discharge values obtained from these equations and those obtained from new experimental data and numerical solutions using Computational Fluid Dynamics (CFD) tools. The data from a scaled physical model study is used to validate a CFD model. Then a larger set of discharge data is produced from the CFD model to cover full range of partial gate openings for different gate positions relative to the spillway crest. By making use of the trends in the data set, a novel explicit discharge equation is derived. The proposed equation, involving two independent coefficients as function of dimensionless parameters, allow designers to calculate the discharge easily without the need of any charts.