【作者】 王敬； 郭刘洋； 兰小平；

【Author】 Wang Jing, Guo Liu-yang, Lan Xiao-ping (China North Vehicle Research Institute, Beijing 100072)

【机构】 中国北方车辆研究所；

【摘要】 采用系统宏观的流量、动量和能量平衡的原理推导了改进的喷水推进器系泊推力计算公式,分析了系泊推力与推进器效率、进出口面积比效率以及进口水流倾角效率等相关影响因素的关系。通过理论计算、CFD仿真方法和实验测试值的对比研究表明,改进后的系泊推力理论计算公式可以应用于实际的喷水推进器设计。更多还原

【Abstract】 An improved formula to calculate the static thrust of water jet pump was deduced by integrally considering the continuity, momentum, and energy balance principles of water inside the propulsion system. The effects of water jet efficiency, inlet/outlet cross-section ratio efficiency, and average inlet water flow direction angle efficiency on the static thrust were also analyzed. Finally, the comparison studies between theory calculation, CFD simulation, and testing data demonstrated that the new static thrust calculation formula could provide designers more insight into the hydrodynamics performance of water jet pump.更多还原