<b>SPJP-A standard pump-jet propulsor series</b>
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Pump-jet propulsors offer good hydrodynamic and acoustic performance in marine applications, yet the lack of publicly available standard series limits rapid preliminary design capabilities. This study establishes the Standard Pump-Jet Propulsor Series A, comprising 240 systematically designed configurations with validated open-water performance characteristics. A comprehensive geometric parameterization framework is developed, treating stator exit angle as a key design variable to provide more complete description of the rotor–stator system. The complete geometric modeling procedure, including rotor and stator parameterization, duct definition, and rotor–stator matching, is documented for direct implementation in practical design. Validated computational fluid dynamics simulations with relative errors below five percent generate 3,801 open-water performance data points spanning pitch ratios, blade area ratios, stator exit angles, and blade numbers. Results reveal that maximum propulsive efficiency occurs at slight negative torque imbalance rather than perfect balance, highlighting critical rotor–stator interaction mechanisms. Polynomial regression models achieve determination coefficients exceeding 0.999 for all performance coefficients. Replacing traditional advance coefficient with normalized advance coefficient further improves predictive accuracy, particularly for low blade-number rotors. All geometric definitions, series-construction procedures, and regression coefficients are publicly released, enabling direct implementation for rapid performance prediction and configuration optimization without repeated simulations.
喷水推进器(Pump-jet propulsors)在船舶应用中具备优异的水动力与声学性能,但目前公开可用的标准系列较为匮乏,制约了快速初步设计能力的发展。本研究构建了标准喷水推进器系列A(Standard Pump-Jet Propulsor Series A),包含240种系统化设计的构型,并附带经过验证的敞水性能特征。本研究开发了一套完整的几何参数化框架,以定子出口角作为核心设计变量,实现对转子-定子系统(rotor–stator system)更全面的描述。整套完整的几何建模流程——涵盖转子与定子参数化、导管定义以及转子-定子匹配——均已形成标准化文档,可直接应用于实际设计工作。通过相对误差低于5%的经过验证的计算流体动力学(computational fluid dynamics)模拟,本研究生成了3801组敞水性能数据点,覆盖螺距比、盘面比、定子出口角以及叶片数等参数维度。研究结果表明,最高推进效率出现在轻微负扭矩失衡的工况下,而非完全平衡的状态,这揭示了转子-定子间的关键相互作用机制。针对所有性能系数,多项式回归模型的决定系数均超过0.999。采用归一化进速系数替代传统进速系数,可进一步提升预测精度,尤其适用于低叶片数转子的工况。所有几何定义、系列构建流程以及回归系数均已公开发布,可直接用于快速性能预测与构型优化,无需重复开展模拟计算。



