绣江复航工程白马枢纽省水船闸三维水力特性数值模拟

Three-dimension numerical simulation of hydraulic characteristics of Baima Junction with water-saving lock for Xiujiang River navigation project

建立白马枢纽省水船闸三维紊流数学模型,对船闸充水过程的正常运行工况进行数值模拟,分析水力特性以及船舶系缆力,并与相同水力边界条件下的普通单级方案进行对比分析。结果表明,省水方案较普通单级方案,按下一级阀门提前开启的方式,充水时间有所延长,增幅6.7%;3个流量峰值中,1峰和2峰值降幅分别为30.98%、31.6%,3峰值增幅为15.16%;船舶纵向最大系缆力和横向最大系缆力降幅分别为36.25%、44.18%。船闸的水力特性等各项参数均满足规范及设计要求。

A three-dimension numerical model for the filling system of Baima Junction with water-saving lock is established to investigate hydraulic characteristics and mooring force with the normal operation scheme.The results show that the filling time is extended by 6.7%via a schedule of advanced valve opening of the next basin as compared to the same lock without basins.Furthermore,the first and second peaks of the flow rate among three peaks decrease by 30.98%and 31.6%respectively,while the third one increases by 15.16%.In addition,the longitudinal maximum mooring force and transverse maximum mooring force decrease by 36.25%and 44.18%respectively.The parameters of the hydraulic characteristics meet the specifications and design requirements.