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| Numerical investigation of freely self-propelled flexible fish using immersed boundary method |
| Received:April 28, 2013 Revised:July 02, 2013 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx201405017 |
| KeyWord:fluid-structure interaction immersed boundary method freely self-propelled numerical simulation |
| Author | Institution |
| 王文全 |
昆明理工大学 工程力学系, 昆明 |
| 郝栋伟 |
昆明理工大学 工程力学系, 昆明 |
| 闫妍 |
昆明理工大学 工程力学系, 昆明 |
| 张立翔 |
昆明理工大学 工程力学系, 昆明 |
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| Abstract: |
| Study on the motion performance of interaction between a swimming or flying creatures and fluid,usually applied to reveal the biological mechanism of mechanics and movement.A "C" type swimming fish as the research object,a flexible model of freely self-propelled swimming fish is established.This model can reflected truly the interaction among fish movement,internal force and the external fluid.Using hybrid finite difference/finite element immersed boundary method combined with traditional feedback force method,the movement of a swimming fish is simulated.The hydrodynamic performance of start-up and cruise process of a swimming fish is analyzed.The results reveal that the conversion of "C" type and "S" type of fish body can improve the efficiency of the fish swimming,and the conversion of "C" type and "S" type is mainly affected by structure of fish body and flow field. |