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| Partitioned algorithm for the coupling of elastic pipe and the transverse fluid in a cylinder |
| Received:October 09, 2016 Revised:January 15, 2017 |
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| DOI：10.7511/jslx201706014 |
| KeyWord:bundles vibration fluid-structure coupling partition algorithm elastic pipe |
| Author | Institution |
| 岳欠杯 |
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 |
| 董日治 |
东北石油大学 机械科学与工程学院, 大庆 |
| 刘德 |
东北石油大学 机械科学与工程学院, 大庆 |
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| Abstract: |
| In the marine flatbed, nuclear power stations and oil fields,cross flow in the fluid field induces vibrations and collision of the marine risers and heat exchangers,and even causes failure with.In this paper, the flexible pipe was discretised into several beam elements,and the dynamical equation was adopted to describe the structure.The fluid domain of the cylinder was discretised into hexahedral solid elements.And the computational fluid dynamics equation was adopted to describe the fluid.At the fluid-structure coupling interface, the formulas of displacement, velocity and load were derived and the corresponding convergence criterion was also derived.Thus the partitioned coupling algorithm was established for the flexible pipe and the transverse fluid in the cylinder.Numerical examples showed that compared with the results of monolithic coupling algorithm, the error was small.And the method established in this article will provide an effective computational method for vibrations and collision of bundles in a more complex fluid domain. |
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