哈尔滨工程大学学报2017，Vol.38Issue(7)：1048-1055,8.DOI:10.11990/jheu.201605075
斜流中螺旋桨非定常水动力性能的数值分析
Numerical analysis of unsteady hydrodynamic performance of propeller in oblique flow
摘要
Abstract
Oblique flow is a relatively simple non-uniform flow that is unfavorable for the unsteady force of the propeller as it may exacerbate the non-uniformity of the stern wake field.In order to explore the general law between the hydrodynamic performance of the propeller and the force change in the oblique flow, we thus calculated the unsteady hydrodynamic performance of the DTMB4679 propeller in the oblique flow.Calculation results indicate the non-uniform pressure distribution on the surface of the blade under the oblique flow condition, which is the root cause of the exciting force.Furthermore, the unevenness of the pressure distribution on the blade surface increases with the decrease of the speed coefficient, and the fluctuation amplitude of the force of a single blade increases with the increase of the oblique angle.Finally, the cloud chart of the vortex structure of the propeller demonstrates a certain variation law at different oblique angles and speed coefficients.关键词
螺旋桨/非定常水动力性能/斜流/压力分布/数值模拟/敞水/激振力Key words
propeller/unsteady hydrodynamic performance/oblique flow/pressure distribution/numerical simulation/open water/exciting force分类
交通工程引用本文复制引用
常欣,梁宁,王超,孙帅..斜流中螺旋桨非定常水动力性能的数值分析[J].哈尔滨工程大学学报,2017,38(7):1048-1055,8.基金项目
国家自然科学基金项目(51379040,51679052) （51379040,51679052）
工信部高技术船舶科研基金项目. （）
