Fluid-structure Interaction Analysis of Hose Pump Based on Direct Force Immersion Boundary Method
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.
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