| In recent years, with the rapid development of science and technology, the fluid-solid coupling has been more widely used not only in the shipbuilding industry, oil industry, defense industry, but also in the nuclear power industry, marine industry, bio-mechanics and other fields. Applied the fundamental theory of fluid mechanics and elastics mechanics, by using united Lagrangian- Eulerian method, the deformation and press of a porous circular cylinder in a transversal cross-flow were studied, and the coupling problems were analyzed, which aims to understand the effect of fluid solid interaction in a more comprehensive direction. Meanwhile the effects eventually aims at a more comprehensive understanding of the penetrating shell fluid-structure coupling, therefore providing a reference for fluid design has important theoretical and practical application value.With the fundamental equations of elastic mechanics and fluid mechanics using united Lagrangian- Eulerian method is used to study the porous circular cylinder in a transversal cross-flow when the bending deformation and fluid pressure. The permeation of fluid was only in the normal direction. All parameters were continuous along shell’s surface. The expression of velocity potential of fluid was given based on the boundary conditions. The normal force and tangential force of the circular cylinder were given assuming the cosine coefficient equal of the same angle. The deformation of the porous circular cylinder in a continuous cross-flow of ideal fluid was given.Good agreement can be found from the comparison of the calculation results and reference data. The solutions obtained in this paper have a wide applicability, which can be naturally degraded to the results of the deformation of an impermeable circular cylinder in a transversal cross-flow. After the analysis and comparison of the concrete numerical analysis, the change of the force and the displacement component is analyzed with the change of the permeability. |
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