基于CFD方法分析端板对摆线推进器性能的影响

文章基于FLUENT求解器,对摆线推进器叶稍末端加装端板前后水动力性能变化进行研究。根据摆线推进器工作中的旋转规律,编写相应UDF控制程序,运用滑移网格技术进行数值模拟。采用结构网格与非结构网格相结合的方式对模型进行计算,分析水动力性能及叶稍涡的变化。计算结果表明,摆线推进器加装端板较未加前的水动力性能更优、叶稍涡强度得到减弱和转矩振荡系数减小。因此在摆线推进器叶片末端加装端板,可提高推进器性能,工作更具安全、稳定性。

Effect of end plate on the performance of cycloidal propeller based on CFD method

A study on the hydrodynamic performance of the cycloidal propeller installed the end plate before and after is presented based on the FLUENT solver. According to the rules of cycloidal propeller in rotation, writing the corresponding control program of UDF, and using the sliding mesh technique to calculate the numerical simulation. The model is calculated by the combination of structured grid and unstructured grid. Analysising the change of hydrodynamic performance and leaves slightly vortex. Calculation results show that the hydrodynamic performance of cycloidal propeller with the end plate is more excellent, the intensity of leaves slightly vortex is decreased, and the torque oscillation coefficient is decreased. Therefore, the end plate is additionally arranged at the end of the blade of the propeller, the propeller performance can be improved, and the work is more safety and stability.