文献类型：期刊文献

英文题名：Numerical Investigation of Coupled Oblique Flow and Steering Effects on Hydrodynamic Performance of Rudder Behind Propeller

作者：Chen, Weiguan[1];Li, Ronghui[1];Huang, Ji[1];Dong, Haihui[1];Qiu, Qiqing[1];Chen, Qinglong[1]

机构：[1]Guangdong Ocean Univ, Naval Architecture & Shipping Coll, Zhanjiang 524005, Peoples R China

年份：2025

卷号：13

期号：11

外文期刊名：JOURNAL OF MARINE SCIENCE AND ENGINEERING

收录：SCI-EXPANDED(收录号：WOS:001624014700001)、、EI(收录号：20254819604470)、Scopus(收录号：2-s2.0-105022921109)、WOS

基金：This research was funded by the National Science Foundation of China (Grant No. 52171346 and 52571405), the special projects of key fields of Universities in Guangdong Province (Grant No. 2023ZDZX3003), Zhanjiang Science and Technology Program Projects (Grant No. 2023E0015 and 2024B01079).

语种：英文

外文关键词：oblique flow; rudder angle; coupling effect; hydrodynamic performance; propeller-rudder interaction

外文摘要：The hydrodynamic performance of a rudder behind a propeller is critical for determining vessel maneuvering stability. During navigation, the coupled effects of the oblique flow angle (beta) and the rudder angle (delta) significantly alter the wake velocity field and vortex patterns aft of the rudder. However, the synergistic control mechanism of these two variables requires further quantitative investigation. This study employs the RANS method with the SST k-epsilon turbulence model to numerically simulate flow under advance coefficients (J) ranging from 0.3 to 0.9, oblique flow angles (beta) from 0 degrees to 15 degrees, and rudder angles (delta) from 0 degrees to 35 degrees. Hydrodynamic coefficients, including the lift coefficient, drag coefficient, and lift-to-drag ratio, were calculated for the rudder. The evolution of the horizontal velocity and vortex fields was captured, with the model validated through localized flow field visualization. The results reveal that when beta <= 3 degrees, delta is the dominant factor influencing rudder hydrodynamics. Conversely, when beta >= 9 degrees, beta becomes the primary regulating factor. The coupling effect induces significant asymmetry in the velocity distribution across the rudder surfaces and pronounced flow separation on the windward side, generating a complex vortex system (including primary and secondary vortices) on the leeward side. This research elucidates the coupled control mechanism of oblique flow and rudder angle, providing insights for enhancing steering margins and a quantitative foundation for optimizing rudder profiles in challenging sea environments characterized by high oblique flow and large rudder angles.