电厂取排水玻璃钢管受波浪力数值模拟研究及改善措施  

Numerical simulation of wave force on FRP pipes for water intake and drainage and improvement measures

作　　者：罗子湛 贾丽 戈龙仔[2] 管宁[2] LUO Zi-zhan;JIA Li;GE Long-zai;GUAN Ning(CHINA HUADIAN ENGINEERING CO. LTD., Beijing 100160, China;Tianjin Research Institute for Water Transport Engineering, National Engineering Laboratory for Port Hydraulic Construction Technology, Ministry of Transport, Tianjin 300456, China)

机构地区：[1]中国华电科工集团有限公司,北京100160 [2]交通运输部天津水运工程科学研究所,港口水工建筑技术国家工程实验室,天津300456

出　　处：《水道港口》2021年第1期45-51,共7页Journal of Waterway and Harbor

基　　金：2018年海洋可再生能源资金项目(GHME2018SF02);交通运输部天津水运工程科学研究所科研创新基金项目(TKS190304)。

摘　　要：结合物理模型试验研究成果基础,采用数学模型模拟手段,基于N-S方程组,在水槽入口边界处采用边界源项造波法,尾部设置人工阻尼区实现消波,构建了二维数值水槽;计算采用PISO算法,选择结构化的四边形网格进行管道局部加密,分别计算了清、浑水两种介质内玻璃钢管在波浪循环荷载作用下所受波浪力大小与波高、周期和水深等影响因素之间的变化关系,并与物理模型试验的结果进行对比,进一步分析两种介质内玻璃钢管波浪力变化规律。同时根据计算得到管道受力结果,针对实际工程中玻璃钢管在施工和运营期间具体实施的适用性,提出了优化改善的措施,研究成果可为类似电厂取排水工程玻璃钢管的设计、施工提供技术支撑。Based on the results of physical model test and N-S equations,a two-dimensional numerical flume was constructed by using the boundary source term wave making method at the entrance boundary of the flume,and the artificial damping was set at the tail to realize wave elimination.The PISO algorithm was used to select the structured quadrilateral grid for local pipeline encryption,and the clear and muddy water were calculated respectively under the action of wave cyclic load,the variation relationship between the wave force and the influencing factors such as wave height,period and water depth was analyzed,and compared with the results of physical model test,the variation law of wave force in two media was further analyzed.At the same time,according to the calculation results of pipe stress,aiming at the applicability of GFRP in construction and operation,the optimization and improvement measures were proposed.The research results can also provide technical support for the design and construction of GFRP in water intake and drainage engineering of similar power plants.

关 键 词：不同介质 玻璃钢管 波浪循环荷载 波浪力 数学模型 

分 类 号：U65[交通运输工程—港口、海岸及近海工程] O242.1[交通运输工程—船舶与海洋工程]