水下航行器附加质量数值计算

莫慧黠; 党建军; 罗 凯; 黄 闯; 黄 标

doi:10.11993/j.issn.2096-3920.2017.03.006

水下航行器附加质量数值计算

doi: 10.11993/j.issn.2096-3920.2017.03.006

西北工业大学航海学院, 陕西西安, 710072

基金项目: 国家自然科学基金项目(51579209、51409215、51679202)

详细信息

作者简介:
莫慧黠(1992-), 男, 硕士, 主要研究方向为水下航行器流体动力仿真与动力机械仿真

中图分类号: TJ630.1; O351.2
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- 被引次数: 0
出版历程
- 收稿日期: 2017-03-31
- 修回日期: 2017-05-25
- 刊出日期: 2017-08-20

Numerical Calculation of Additional Mass for Undersea Vehicle

School of Marine Science and Technology, Northwestern Polytechnical University, Xian 710072, China

摘要

摘要: 附加质量力是水下航行器在非定常运动中所受到的流体惯性力, 其实验或数值计算过程均涉及非定常运动, 结果获取难度大。为了进一步提高水下航行器附加质量参数的计算精度和效率, 基于动参考系的计算思想, 耦合3D N-S方程和k-epsilon 湍流模型, 建立了水下航行器非定常运动的流场计算模型; 对椭球、圆柱标准模型的惯性力特性以及水下航行器的全部附加质量特性进行了数值仿真。结果表明, 椭球、圆柱附加质量的数值计算结果精确, 且水下航行器附加质量的计算误差不超过10%。文中所提方法将有助于水下航行器总体设计和水动力计算。
- 水下航行器 /
- 附加质量 /
- 动参考系 /
- 数值仿真
Abstract: Additional mass force on undersea vehicle is a fluid inertia force due to unsteady motion, which is difficult to obtain from experiment or numerical calculation. In this paper, an unsteady flow field calculation model of an undersea vehicle is presented in the moving coordinates system by making use of the 3D N-S equation and the k-epsilon turbulence model. The proposed model is verified by inertia force solutions of ellipsoid and circular cylinder models. Then, based on the present numerical method, the additional mass of an undersea vehicle is calculated. Simulation results show that the relative errors of the obtained additional mass are less than 10%. This numerical calculation method of additional mass may be helpful to the overall design and hydrodynamic calculation of an undersea vehicle
- undersea vehicle /
- additional mass /
- moving coordinates system /
- numerical simulation

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参考文献(16)

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