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| Three-dimensional dynamic characteristics of fluid-structure interaction in air flowing around tiny triangular prism using numerical method |
| Received:April 23, 2014 Revised:August 25, 2014 |
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| DOI：10.7511/jslx201504021 |
| KeyWord:triangular prism three dimensional vortex induced vibration two way fluid-solid interaction dynamic mesh model |
| Author | Institution |
| 黄立浦 |
长沙学院 土木建筑工程系, 长沙 |
| 王军雷 |
郑州大学 化工与能源学院, 郑州 |
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| Abstract: |
| The characteristics of fluid-solid interaction under low flow velocity(2.5 m/s~15 m/s)was numerically simulated by dynamic mesh model basing on three dimensional-two way coupling method.The present paper discussed characteristic values of lift coefficient,frequency of vortex shedding and the ampitude of the cylinder.The phenomenon of "lock-in" and "beat" was captured.The VIV of two-dimensional of fluid-solid interaction of triangular prism was discussed in this paper,the result was compared to the three dimensional model in this paper.The results showed that the amplitude of lift coefficient,frequency of vortex shedding and strouhal number of three-dimensional model is lower than those of the two dimensional. |