Numerical Simulation of Flow Characteristics of Slot Gate Based on CFD
HE Lixin
LIU Xiaolong
ZHANG Zheng
ZHANG Hongyang
Abstract：To investigate the flow characteristics of the slot gate under free outflow conditions,Computational Fluid Dynamics(CFD)numerical simulation technology was employed to examine its hydraulic performance.A three-dimensional model of the fluid domain and the gate was established using Fluent software.The standard k-ε turbulence model and the Volume of Fluid(VOF)method were utilized to numerically simulate the discharge capacity of the slot gate under various working conditions.Parameters such as flow rate,gate opening,upstream water level,downstream water level,and water surface profile were obtained.The discharge characteristic curve was fitted using the weir flow formula and verified against field test data.Results indicated that the relative error between the simulated water levels and field measurements was within 3%.This demonstrated that numerical simulation is a viable method for studying the discharge characteristics of slot gates under free outflow and meets practical measurement accuracy requirements.
Keywords：slot gatedischarge capacityFluentflow characteristics
Publication Date：2026-02-20
Online Publishing Date：2026-03-27(First online date of this platform, not the publication date of the document)
Pages：7( 88-94 )