为了更灵活高效地对吊舱推进器偏转工况下水动力性能进行数值模拟，采用重叠网格划分螺旋桨计算流域和某吊舱推进器偏转工况下的计算流域，对4381型、4119型螺旋桨的敞水性能进行了数值预报，将重叠网格和滑移网格获得的计算结果进行了比较分析，验证了重叠网格方法应用于螺旋桨水动力性能计算的可行性。对吊舱推进器偏转工况下水动力性能进行预报和分析。结果表明，应用重叠网格获得的计算结果具有较高的计算精度，且重叠网格处理吊舱推进器偏转工况等多体相对运动问题更高效。%In order to numerically simulate the hydrodynamic performances of podded propulsors in azi‐muthing conditions with more flexibility and higher efficiency ,the computational flow domain of DT‐MB4381 ,DTMB4119 and a podded propulsor are partitioned by using overset mesh .The hydrody‐namic performances of DTMB4381 and DTMB4119 are numerically predicted ,and a comparison is made between the calculation results using both overset and sliding meshes .In addition ,the feasibility of applying the overset mesh approach to the calculation of propellers'hydrodynamic performance is proved .The hydrodynamic performances of a podded propulsor in azimuthing conditions are predicted and analyzed .T he results show that :the calculation results by using overset mesh have higher accu‐racy ,and the overset mesh can more efficiently deal with problems of multi‐body relative motions such as podded propulsors in azimuthing conditions .
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