| Study on the Effect of Two-Dimensional Helicopter V-buoy’s Way of Water Entry on Water Impact |
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| 作者姓名： | Qingtong Chen Guanggen Yang |
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| 基金项目： | Sponsored by the National Natural Science Foundation of China |
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| 摘 要： | To analyze the effect of the way of water entry on water impact, the FLUENT software was adopted to simulate a two-dimensional(2D) helicopter V-buoy's free fall and forced fall at a constant velocity. Combining with the UDF program and the dynamic mesh model, the standard k-ε turbulence model was used and the VOF technique was adopted to capture free surface. The physical parameters such as velocity and force were calculated and compared with those results of boundary element method with good agreement obtained. It was found that the force of 2D V-buoy at a constant velocity was much greater than that in free fall motion. Meanwhile, the maximum pressure coefficients C_(pmax) in both cases were almost equal and the dimensionless water-entry depths y' corresponding to C_(pmax) were also similar.
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| 收稿时间： | 2018/5/6 0:00:00 |
Study on the Effect of Two-Dimensional Helicopter V-buoy's Way of Water Entry on Water Impact |
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| Qingtong Chen,Guanggen Yang.Study on the Effect of Two-Dimensional Helicopter V-buoy's Way of Water Entry on Water Impact[J].Journal of Harbin Institute of Technology,2019,26(3):91-96. |
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| Authors: | Qingtong Chen and Guanggen Yang |
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| Affiliation: | China Helicopter Research and Development Institute, Jingdezhen 333000, Jiangxi,China and China Helicopter Research and Development Institute, Jingdezhen 333000, Jiangxi,China |
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| Abstract: | |
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| Keywords: | helicopter 2D V-buoy the way of water entry water impact FLUENT VOF |
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