贯流式螺旋喷水推进泵的设计

在喷水推进动力学的基础上,对单人贯流式螺旋喷水推进装置进行了流体动力学分析,得出了推进器在水下所受外流场阻力、推力、功率和推进速度的关系。根据其内在联系,确定了推进泵的泵型和工作参数,并依据数据泵的工作参数对推进泵进行了设计和优化。通过泵内流场的数值计算,预测了泵的推力与推进速度之间的关系。结果表明该推进泵可以很好地吻合推进装置的推进特性,为该类型推进装置的设计和优化提供了参考依据。

The Design of Tubular Water-jet Axial Flow Pump

Based on the water jet propulsion dynamics,this paper makes fluid dynamic analysis of the single tubular screw water jet propulsion unit,and gets the relationship of external flow field resistance,thrust, power and advance speed of thruster under the water.And then,according to the intrinsic relationship to determine the pump type and working parameters,and make designing and optimization on the basis of the parameters.It predicts the relationship between the thrust and advance speed of pump through the value calculation of pump internal flow field,showing that the pump can well cooperate with the advance charac-teristics of the propulsion plant,which can provide reference of the design and optimization of this kind of propulsion plant.