射流扰动下舰船多叶片螺旋桨角度的实时调整

Real time adjustment of ship multi blade propeller angle under jet disturbance

以实时调整舰船多叶片螺旋桨角度,提升舰船多叶片螺旋桨应用性能为目的,研究射流扰动下舰船多叶片螺旋桨角度的实时调整技术。利用协同射流控制技术,以三维雷诺平均N-S方程作为控制方程,求解状态矢量、对流通矢量、耗散通矢量等;利用上述参量分析协同射流螺旋桨形态受力情况,获取射流扰动产生的作用力;基于该作用力计算喷口动量系数、气泵功率系数等,分析这些参数对协同射流的影响,基于这种影响实现舰船多叶片螺旋桨角度实施调整。实验结果显示该方法所得的数据具有较高的可靠性,利用该方法实时调整射流扰动下舰船多叶片螺旋桨角度,能够显著提升螺旋桨的性能。

With the aim of real-time adjusting the angle of a ship's multi blade propeller and improving its application performance,the real-time adjustment technology of the ship's multi blade propeller angle under jet disturbance is studied.Using collaborative jet control technology,the three-dimensional Reynolds averaged N-S equation is used as the control equation to solve the state vector,flow vector,dissipation flux vector,etc;Using the above parameters to analyze the force acting on the shape of the collaborative jet propeller and obtain the force generated by jet disturbance;Based on this force,the momentum coefficient of the nozzle and the power coefficient of the air pump are calculated,and the influence of these parameters on the collaborative jet is analyzed.Based on this influence,the angle of the ship's multi blade propeller is adjusted.The experimental results show that the data obtained by this method has high reliability.Using this method to adjust the multi blade propeller angle of a ship under jet disturbance in real-time can significantly improve the performance of the propeller.