Magnus圆柱叶轮的水动力学特性及效率研究

Study on hydrodynamic characteristic and efficiency of the Magnus cylindrical blade impeller

我国海流能资源储量丰富,其中低流速海况的能量有极大的开发价值。Magnus圆柱叶轮可以产生较大的转动力矩且充分利用来流能量,以在低流速海流条件下发电,该文对Magnus圆柱叶轮的水动力学特性及效率进行研究。首先,利用PRO/E软件为平台对Magnus圆柱叶轮进行建模,使用Ansys中的MRF方法对模型中的旋转域进行计算;其次,对其受力情况和获能情况进行分析,得到Magnus叶轮的水动力学特性及效率。研究表明:相较于传统叶片,Magnus圆柱叶轮有更好的启动性能,圆柱自转会减小叶顶能量损失。该文为Magnus圆柱叶轮海流涡轮机的工程应用提供了一定的参考价值。

China is rich in ocean current energy resources and the low-flow sea conditions have great development value.The Magnus cylinder impeller can generate large rotational torque,make full use of flow energy,and can generate electricity under low flow currents.Therefore,the hydrodynamic characteristics and efficiency of Magnus cylinder impeller are studied in this paper.First,magnus cylindrical blade impeller is established based on the platform of PRO/E software.The MRF method in Ansys is used to compute the rotation sub-fields.Then the magnus cylindrical impeller is water hydrodynamic characteristics and efficiency are obtained by comparing with ordinary airfoil impeller through simulating and analyzing.Studies have shown that Magnus cylinder impellers have better startup performance compared to conventional blades,and that cylinder rotation reduces tip energy losses.This paper provides a certain reference for the magnus cylindrical blade impeller turbine engineering application.