An effective CFD approach for marine-vehicle maneuvering simulation based on the hybrid reference frames method
An effective CFD approach for marine-vehicle maneuvering simulation based on the hybrid reference frames method
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DOI：
10.1016/j.oceaneng.2015.08.057
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发表时间：
2015-11
影响因子：
5
通讯作者：
Xiao-cui Wu;Yiwei Wang;Chenguang Huang;Zhiqiang Hu;Rui-wen Yi
中科院分区：
文献类型：
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作者：
Xiao-cui Wu;Yiwei Wang;Chenguang Huang;Zhiqiang Hu;Rui-wen Yi
CFD对机动性仿真的计算效率存在很大困难，导致其应用受到限制。建立了一种结合旋转参考系方法和附加动量源方法的混合参考系方法。将计算域分为旋转参考系和惯性系下的两部分。测试模型的所有条件（例如不同的旋转臂半径、俯仰角和漂移角）都需要单个网格。验证是基于对 SUBOFF 模型（包括船尾模型和完整附加模型）周围流场的数值模拟进行的。结果表明，横摆力矩和横摆力的稳定性导数与实验数据吻合较好。采用量纲分析方法，研究了转臂半径和线速度的影响。当半径恒定时，保持相似性，而当半径较小时，旋转效果表现强烈。当使用完全附加的 SUBOFF 模型固定线速度时，还讨论了俯仰角和漂移角的影响。
The computational efficiency of CFD on maneuverability simulation poses a great difficulty resulting in its restricted applications. A hybrid reference frames method is established that combines the rotating reference frame method and an added momentum source method. The computational domain is separated into two parts under the rotating reference frame and the inertial frame respectively. A single mesh is needed for all conditions of a testing model such as different rotating arm radius, pitch angles and drift angles. The validation is carried out based on the numerical simulations on the flow fields around the SUBOFF models including sterns and full appended models. Results show that the stability derivatives of the yawing moment and yawing force agree well with the experimental data. Using a dimensional analysis method, the influences of the rotating arm radius and linear velocity are investigated. The similarity is maintained when the radius is constant, and the rotating effect performs strongly when the radius is small. The effects of pitch angle and drift angle are also discussed when the linear velocity is fixed with the fully appended SUBOFF model.