本文基于STAR-CCM+对非均匀来流下的螺旋桨非定常力进行数值模拟，通过与试验值进行比较，分析了时间离散格式、单位时间步长螺旋桨旋转角度与网格密度对计算结果的影响。结果表明，在螺旋桨非定常力计算中，螺旋桨单位时间步长的旋转角度应为1.8°同时选取二阶时间离散格式，桨叶表面网格的边界增长率设定为medium就可以达到计算精度的要求。并在此基础上，对Suboff全附体潜艇模型下3个螺旋桨的非定常力进行数值模拟，分析桨叶个数以及桨叶侧斜对非定常力变化幅度的影响。
Numerical calculation of propeller unsteady hydrodynamics in non-uniform flow was made in the paper based on STAR-CCM+. By comparing the computed results with the experimental data, The influence of temporal discretization, propeller rotating angle per time step and mesh density on the computed results was analyzed. It is shown that, in the numerical calculation on propeller unsteady hydrodynamics, propeller rotating angle per time step should be 1.8° with 2-nd order temporal discretization selected, and boundary growth rate of propeller surface mesh is set "medium" to meet calculation precision requirements. Moreover, numerical calculation of with SUBOFF submarine model was made. The influence of blades number and propeller skew on unsteady hydrodynamics amplitude of variation was analyzed.
2018,(): 33-38 收稿日期：2016-10-07
DOI：10.3404/j.issn.1672-7649.2018.02.006
分类号：U661.3
基金项目：国家自然科学基金项目（51579243）
作者简介：张凯奇(1992-),男,硕士研究生,研究方向为舰船流体力学
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