中国舰船研究2017，Vol.12Issue(1)：1-7,7.DOI:10.3969/j.issn.1673-3185.2017.01.001
KCS标称伴流场的尺度效应数值分析
Numerical analysis of the scale effect of the nominal wake field of KCS
摘要
Abstract
In order to study the scale effect of the nominal wake field, the viscous flow field of KCS is studied without considering the free surface effect, and the nominal wake fields of KCS at different scales including full scale are solved numerically using the RANS method and the SST k-ω turbulence model. By comprehensively comparing the computed results with experimental data, the scale effect of the nominal wake field is further investigated. This shows that the reciprocal of the mean axial wake fraction at each radius exhibits a near-linear dependence on the Reynolds number in a logarithmic scale; for the nominal wake field of the propeller disc of KCS without a propeller, two wake peaks exit, and the amplitude of the axial wake peak decreases with the increase of the Reynolds number, which is conducive to a decrease in propeller exciting force and propeller cavitation; the scale effect of the small scale model is more obvious, and the scale effect of the mean axial wake fraction in the inner area is stronger than it is in the outer area.关键词
标称伴流场/尺度效应/KCS/数值计算Key words
nominal wake field/scale effect/KCS/numerical calculation分类
交通工程引用本文复制引用
张海鹏,张东汗,郭春雨,王恋舟,刘恬..KCS标称伴流场的尺度效应数值分析[J].中国舰船研究,2017,12(1):1-7,7.基金项目
国家自然科学基金资助项目（51209048，41176074，51409063）；工信部高技术船舶科研资助项目（G014613002）；哈尔滨工程大学青年骨干教师支持计划 （）
