本文采用数值模拟方法分析由“固定水平翼+可操纵转角迫沉襟翼”所构成的迫沉水翼产生的控制力作用下水下拖曳体以及迫沉水翼的动力学特征。采用重叠网格技术,运用相对运动原理分析不同拖曳速度下,多自由度体拖曳体中的迫沉襟翼在一定偏转角范围内正弦摆动运动时的水动力特征。结果表明,本文所采用的通过控制迫沉襟翼转角诱导固定水平翼产生所需要的较大迫沉升力的控制方式,可以提高对拖曳体升沉运动的操纵效率。
In this paper, the dynamic characteristics of underwater towed body and forced hydrofoil under the control force of a forced hydrofoil composed of a fixed horizontal wing and a controllable Angle forced hydrofoil are analyzed by numerical simulation. In the analysis, the hydrodynamic characteristics of the forced flaps in the towed body with multiple degrees of freedom under different towing speeds are analyzed by using the overlapping mesh technique and the principle of relative motion. The analysis results show that the control method adopted in this paper can improve the control efficiency of the towed body heave motion by inducing the fixed horizontal wing to produce a large forced lift force by controlling the change of the thrust flap angle.
2022,44(18): 78-85 收稿日期:2021-10-18
DOI:10.3404/j.issn.1672-7649.2022.18.017
分类号:TV131.2
基金项目:国家自然科学基金资助项目(51979110)
作者简介:罗鹿鸣(1995-),女,硕士研究生,主要从事船舶与海洋工程水动力学研究
参考文献:
[1] 吴家鸣, 赖宇锋, 李江伟, 徐灜. 导管螺旋桨的推力、进速与诱导速度沿盘面的分布特征[J]. 船舶工程, 2016, 38(12): 23–26
[2] 胡光忠, 胡以怀, 陈彦臻, 等. 断叶螺旋桨水动力特性分析及诊断应用[J]. 船舰科学与技术, 2020(13): 74–78
[3] EHSAN J, EHSAN Y, JAVAD A M, et al. Hydrodynamic characteristic curves and behavior of flow around a surface-piercing propeller using computational fluid dynamics based on FVM[J]. Ocean Engineering, 2019: 192
[4] 吴家鸣, 钟乐, 张恩伟, 等. 基于动网格技术研究海流对水下机器人运动特性的影响[J]. 舰船科学技术, 2017, 39(12): 20–25
[5] 张恩伟. 动网格技术和空化模型研究水下潜器回转运动的推力特性[D]. 广州:广州华南理工大学, 2017.
[6] 赵发明. 重叠网格在船舶CFD中的应用研究[J]. 船舶力学, 2011(4): 333–341
[7] NAkAHASHI K , SHAROV D , TOGASHI F. Intergrid-boundary definition method for overset unstructured grid approach[J]. AIAA journal, 2000, 38(11).
[8] 沈志荣. 船桨舵相互作用的重叠网格技术数值方法研究[D]. 上海:上海交通大学, 2014.