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| Numerical simulation on interface coupling of rotary slender pipe and fluid in cylinder |
| Received:December 10, 2009 Revised:September 04, 2010 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx201104019 |
| KeyWord:rotary slender pipe fluid-structure interaction partitioned coupling non-matching meshes |
| Author | Institution |
| 张强 |
东北石油大学 机械科学与工程学院,大庆 |
| 刘巨保 |
东北石油大学 机械科学与工程学院,大庆 |
| 罗敏 |
东北石油大学 机械科学与工程学院,大庆 |
| 张艳鸣 |
大庆油田有限责任公司 第二采油厂,大庆 |
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| Abstract: |
| Rotary slender pipe in cylinder is a special structure in the oil engineering. It contacts with the outer cylinder, and interacts with its inner pipe fluid and outer annular fluid. It's a complex system of nonlinear fluid-structure interaction. In the paper, the slender pipe is discreted to beam elements along axial line, and described as nolinear kinetic equations of impact contact. The fluids are discreted to hexahedron elements, and described as CFD equations. The ALE method is used to track kinetic interface. Based on the shape functions of beam element, force and displacement interpolation between non-matching meshes at interface is derived. The partitioned coupled dynamic model and numerical method are established. Numerical results show that the rotary slender pipe with its fluids has a strong coupled phenomenon. |