潜艇快速性模型试验分析及实艇预报新方法研究

Study on A New Method for the Model Test and Speed Performance Prediction of Single Screw Submarine

本文在研究二向度实效伴流理论的基础上,建立了新的潜艇快速性模型试验分析方法,将该方法系统地应用于各类潜艇快速性模型试验分析,结果表明它适用于所有单轴潜艇快速性模型试验分析,特别是尾部有较强旋转流动的情形;本文还基于二向度方法,并引入摩擦形状因子的概念,提出了新的潜艇快速性预报方法,结果表明,新方法的最终预报结果与传统方法相同,但推进效率的分量不同。

This paper elaborates an analytical method of the model test results and the relevant power performance prediction method of submarines with consideration of the tangential wake. Based on the existing 2D effective wake theory and propeller open water test, self-propulsion test, a reasonable and feasible test data analysis method including the tangential effective wake was proposed. And some useful conclusions had been drawn by calculating the tangential effective wake factors of a certain amount of submarines. A new submarine power performance prediction procedure based on the 2D method and friction factor concept was developed and two examples were presented. The prediction results from the new method are same as that of the traditional method while the components of propulsive efficiency are different.