基于三元可控速度矩法的水下航行体推进泵参数化设计方法

随着水下航行体对推进器高性能和低噪声要求与日俱增,迫切需要研究适用于水下航行体的推进泵.本文选出影响水下航行体推进泵水动力性能的主要参数,基于三元可控速度矩方法,编写Matlab程序对推进泵进行参数化设计,并结合CFD数值模拟方法进行设计优化与试验验证.CFD计算结果表明模型泵水力效率能达到83%,达到设计目标并准确把握了设计工况点,验证了本方法的可靠性,为开发高性能水下航行体推进泵奠定基础.

Parametric design method of underwater vehicle water-jet pump applying 3D controllable velocity moment theory

With the increasing demand of underwater vehicles for the high performance and low noise of propulsion, it is urgent to study the water-jet pump which is suitable for underwater vehicles. According to 3D controllable velocity mo-ment theory, this paper chooses the main parameters which greatly infect the hydrodynamic performance of the underwater vehicle water-jet pump and conduct parametric design through Matlab programming. Design and optimization are carried out with the help of CFD numerical simulation method. The CFD results show that the efficiency of the model pump can reach 83%, and all hydrodynamic performance achieve the design goal, moreover, the design operating point is grasped accurately thus testifying that this parametric design method is reliable and lay the foundation for high performance underwater vehicle water-jet pump.