摘要
针对调距桨动态调距的工况,以桨的敞水水动力性能计算为基础,对比分析基于多参考系的定常计算方法和基于滑移网格的非定常计算方法求解系柱工况下敞水性能的差异,并分别用滑移网格和重叠网格模拟动态调距过程桨的水动力性能。结果显示,基于滑移网格非定常计算方法得到的结果更为准确;与固定螺距角下的稳态水动力和流场相比,动态调距过程中水动力和流场随螺距角的改变有相同的变化规律,且差异较小。论文提出的动态调距计算方法可用于复杂工况动态调距的计算,为调距桨设计提供参考。
The steady calculation method based on multiple reference frames and unsteady calculation method based on sliding mesh is compared. Sliding mesh and overset mesh are used respectively to simulate dynamic hydrodynamic forces and flow field at the pitch adjustment of a controllable pitch propeller, and compared with the steady hydrodynamic forces and the flow field of the propeller with fixed pitch. The results show that the unsteady calculation method based on the sliding mesh is more accurate for calculating the open water performance of the propeller under bollard condition. Hydrodynamic forces and the flow field in the process of dynamic pitch adjustment have the same changeable rule with that induced by a fixed pitch angle, and the difference between them is small. The dynamic pitch calculation method of the controllable pitch propeller proposed in this paper will provide an effective reference for design of a controllable pitch propeller.
作者
刘文涛
刘志华
马骋
陈前
LIU Wentao;LIU Zhihua;MA Cheng;CHEN Qian(College of Ship and Ocean,Naval University of Engineering,Wuhan 430033,China;China Marine Development&Research Center,Beijing 100161,China)
出处
《中国造船》
EI
CSCD
北大核心
2022年第6期14-30,共17页
Shipbuilding of China
基金
装备预研共用技术和领域基金(61402070503)。
关键词
调距桨
动态调距
系柱工况
水动力
滑移网格
controllable pitch propeller
dynamic pitch adjustment
bollard condition
hydrodynamic force
sliding mesh
