摘要
软管泵是一种容积式流体输送设备,其工作原理基于软管变形和流体速度之间的耦合作用,一般需要根据经验或者测试对其性能进行评估,为对大容量软管泵运行状况进行快速且精确地预测,采用直接力浸入边界法建立流固耦合分析模型,通过建立弹簧单元并根据边界位移的三角函数分布假定来实现软管的柔性变形和刚性约束。分析结果得出了单个流程下的边界变形和相应的流体速度,得到了泵运行过程中的流体速度在管截面的分布及其随时间的变化情况,并根据分析模型预测了泵的流量。
Hose pump transports the fluids media by changing the volume,whose working principle is based on the interaction between the hose deformation and fluid velocity.Its running characteristic is usually assessed by empirical or test.To predict the running of hose pump with high volume rate precisely and rapidly,a direct forcing immersed boundary method was used to build the fluid-solid interaction model.The deformation of the boundary and rigid constraint was realized by using spring elements,where the profile of boundary displacement was assumed to be trigonometric function.The results implied the boundary deformation and relevant fluid velocity under a single cycle.The temporal and spatial fluid velocity of the pipe section was indicated,and the flow rate was calculated by the analytical model.
作者
魏鑫
刘炜
WEI Xin;LIU Wei(Shanxi Transportation Construction Engineering Quality Testing Centre(Limited),Taiyuan,Shanxi,030006,China;Department of Construction Engineering,Shanxi Vocational University of Engineering Science and Technology,Jinzhong,Shanxi,030619,China)
出处
《建材技术与应用》
2024年第2期38-42,共5页
Research and Application of Building Materials
基金
山西工程科技职业大学2022年度校级科技创新项目(KJ202217)。
关键词
浸入边界
流固耦合
欧拉网格
弹簧单元
节点
immersed boundary
fluid-solid interaction
Eulerian mesh
spring elements
grid
