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| Numerical simulation on complex moving boundary flow using feedback immersed boundary method |
| Received:April 06, 2014 Revised:August 20, 2014 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx201504019 |
| KeyWord:fluid-structure interaction immersed boundary method adaptive grid feedback force method moving boundary flow |
| Author | Institution |
| 王文全 |
昆明理工大学 工程力学系, 昆明 |
| 苏仕琪 |
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 |
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| Abstract: |
| Immersed boundary method is one of the important numerical methods for solving the interaction between solid and viscous fluid.A rotating cylinder and a swirl guide vane of hydro-turbine immersed in an incompressible fluid are simulated using finite difference immersed boundary method combined with feedback force method.The immersed boundary is replaced by a set of discrete material points and an adaptive refined.The fluid domain is discretized by Cartesian grid with finite difference.The force action on the fluid due to the solid is constructed by the feedback force function.Two numerical examples are implemented,one is a rotating cylinder immersed in an incompressible fluid.Comparisons between the results of the paper and that of experiment show the reliability of this method.Another is the swirl of guide vane of hydro-turbine in water,the dynamical flow characteristics is gained,and the evolution of vortex is also shown. |