计及船体干扰的首尾侧推器粘性水动力数值计算
Numerical calculation of viscous hydrodynamics of fore and stern thrusters considering hull disturbance
卢浩南 1王化明 1邬宾杰 1汪家政 2郁惠民 1沈益骏3
作者信息
- 1. 浙江海洋大学船舶与海运学院,浙江舟山 316022
- 2. 舟山长宏国际船舶修造有限公司,浙江舟山 316052
- 3. 舟山海关综合技术服务中心,浙江舟山 316000
- 折叠
摘要
本文运用以雷诺平均N-S方程(RANS)为基础的粘性流CFD方法,结合MRF多重参考系模型,对某LNG运输及加注船的首尾侧推器粘性流场和水动力进行数值计算,在多种不同航速条件下,研究了在低速航行时船速对侧推器推力性能的影响规律.通过对比分析得出,首尾侧推器的侧推性能及其对船体水动力性能存在很大差别,并且这2个方面的性能对航速的敏感性也存在很大差异;采用独立尾侧推器舱室布局设计的尾侧推装置效率比独立首侧推器高.
Abstract
In this paper,the viscous flow CFD method based on Reynolds-averaged N-S equations(RANS)and the multiple reference frame model(MRF)are used to numerically calculate the viscous flow field and hydrodynamic forces of the fore and stern thrusters of an LNG carrying and bunkering vessel.The influence of ship speed on the thrust performance of the thrusters at low speeds is studied under various conditions.Through comparative analysis,it is concluded that there are great differences between the hydrodynamical performances of fore and stern thrusters and their sensitivity to ship speed.The efficiency of the independent stern thruster is much higher than that of the independent fore thruster.
关键词
首尾侧推器/水动力/粘性流Key words
fore and stern thrusters/hydrodynamic force/viscous flow引用本文复制引用
基金项目
国家自然科学基金(51109186)
浙江省重点研发计划(2021C02184)
出版年
2024
NETL
NSTL
万方数据