对于侧推器的研究常采用模型试验和公式推导的方法，这些方法对于侧推器的设计研究成本较高，且无法获得槽道内的精细流场。在CFD计算中，采用MRF方法计算误差较大，为此，对照1308和1308-B槽道侧推器试验，采用全流域结构网格的URANS模型对试验进行了仿真计算，探究了边界条件、计算域、结构网格密度和时间步长对计算结果的影响，并最终确定一套计算方法对试验结果进行了验证，发现数值计算结果与试验的吻合度较高。误差在6%以内。在此基础上对不同叶片数的1308和1308-B槽道侧推器不同螺距比下的水动力和流场特性做了计算分析。
Model test and formula derivation are often used in the research of side thruster. These methods have high cost for the design and research of side thruster, and can not obtain the fine flow field in the channel. In CFD calculation, the calculation error of MRF method is large. Therefore, compared with 1308 and 1308-B channel side thruster tests, The URANS model of the whole basin structural grid is used to simulate the test, and the effects of boundary conditions, calculation domain, structural grid density and time step on the calculation results are explored.Finally, a set of calculation method is determined to verify the test results. It is found that the numerical results are in good agreement with the experimental results.The error is within 6%. On this basis, the hydrodynamic and flow field characteristics of 1308 and 1308-b channel thrusters with different blade numbers under different pitch ratios are analyzed.
2023,45(11): 59-64 收稿日期：2022-05-31
DOI：10.3404/j.issn.1672-7619.2023.11.012
分类号：U661
作者简介：杨星晨(1993-),男,硕士研究生,研究方向为海洋结构物设计与制造
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