摘要
为明确渡槽槽内水流流速和质量对拱式渡槽流固耦合响应的影响,以云南滇中引水工程中的鲁支河拱式渡槽为背景,基于ANSYS Workbench和Fluent软件,建立考虑单向流固耦合的有限元模型,分析槽内水流对渡槽的位移和应力响应。结果表明:槽内水流在1.0~2.5m/s范围内时,流速对槽身内壁和底板的流固耦合响应影响较小,流速对结构的影响可以忽略;随着槽内水位的升高,水体质量的增大,渡槽槽身和拱圈的竖向位移和拉应力也随之增加,水体质量对拱式渡槽的流固耦合响应影响明显。根据计算结果,为渡槽的新建和加固设计提供建议。
In order to clarify the influence of the flow velocity and mass in the aqueduct on the fluid-solid coupling response of the arch aqueduct, based on the Luzhi River arch aqueduct in the Yunnan-Yunnan diversion project, based on ANSYS Workbench and Fluent software, a unidirectional fluid-solid The coupled finite element model analyzes the response of the water flow in the trough to the displacement and stress of the aqueduct. The results show that when the water flow in the tank is in the range of 1.0 m/s-2.5 m/s, the velocity has little effect on the fluid-structure coupling response of the inner wall of the tank body and the bottom plate, and the effect of the velocity on the structure can be ignored;with the water level in the tank As the water mass increases, the vertical displacement and tensile stress of the aqueduct body and arch ring also increase, and the effect of the water mass on the fluid-structure coupling response of the arch aqueduct is obvious. According to the calculation results, some suggestions are provided for the new construction and reinforcement design of the aqueduct.
作者
刘坤
李睿
王若谷
李定美
郑毅
LIU Kun;LI Rui;WANG Ruogu;LI Dingmei;ZHENG Yi(School of Architectural Engineering of Kunming University of Science and Technology,Kunming,Yunnan 650504,China;China Coal Science and Industry Group Wuhan Design and Research Institute Co.,Ltd.,Wuhan,Hubei 430064,China;Qujing Highway Bureau,Qujing,Yunnan 655000,China;Yunnan Ruide Road and Bridge Engineering Design Co.,Ltd.,Kunming,Yunnan 650500,China)
出处
《施工技术（中英文）》
CAS
2022年第7期80-84,共5页
Construction Technology
基金
国家自然科学基金(51568029)
云南省交通厅科技开发项目(云交科2013(c)08)。
关键词
引水工程
拱式渡槽
水流流速
水流质量
流固耦合
有限元分析
diversion engineering
arched aqueduct
flow velocity
flow quality
fluid-structure coupling
finite element analysis
