升力线理论

用升力线理论预报螺旋桨性能和桨叶表面压力分布

Prediction of Propeller Characteristics and Pressure Distribution on the Blade by Lifting Line Theory

用准定常升力线理论预报螺旋桨在非均匀流场中的性能

Prediction of performance characteristics of propeller operating in a nonuniform wake field by quasi-steady lifting line theory

船舶螺旋桨非线性升力线理论研究

A Non-Liner Lifting Line Method for Propeller Design

本文分析了流水摆式发动机水动力性能计算的基本公式，根据动量定理和升力线理论计算了摆式发动机的性能。

In this paper , the hydrodynamic performance of the engine is calculated according to momentum theorem and lifting line theory .

将螺旋桨升力线理论的逆问题计算方法改进应用到轴流风机叶片设计，并且验证了该方法的工程应用价值。

The lift line theory is extended to the axial fan . The design results prove that this method is acceptable for practical engineering applications .

本文应用准定常升力线理论预报船用螺旋桨的性能，建立了适合中型计算机的程序。

In this paper , a method based on quasi-steady lifting line theory for the prediction of performance characteristics of a propeller working in a non-uniform wake field is presented .

基于桨叶二阶升力线理论和旋翼自由尾迹模型，本文在第三章建立了一个适合于直升机旋翼尾迹结构及桨-涡干扰气动特性分析的方法和模型。

In Chapter 3 , based upon the blade second-order lifting-line model and rotor free-wake model , an analytical method is developed for predicting the rotor wake structure and BVI airload .

本文分析了应用导轮装置可将常规螺旋桨尾流能量转换为推进功率的原理，给出了以升力线理论为基础的导轮设计方法。

In this paper the principle of applying vane wheel to convert the energy in the slipstream of conventional propeller into propulsive power is analysed and a design method for vane wheel based on lifting line theory is also given .

但螺旋桨设计方法发展多年，有许多成熟的设计方法如：动量理论、涡流理论、升力线理论、升力面理论等。

Since the design methods applied to the propeller have been developed for many years in China , there are lots of practical design methods such as momentum theory , vortex theory , lift line theory , lift surface theory and so on .

然后，用升力线理论计算了螺旋桨的几何参数和水动力参数，并用用升力面理论计算了压力分布、推力系数和扭矩系数，用面元法计算了螺旋桨的推力系数和扭矩系数。

Then , using propeller lifting line theory to calculate the geometric theory parameters and the hydrodynamic parameters , calculated pressure distribution , thrust coefficient and torque system number with the lifting surface theory , using the panel method to calculate propeller thrust coefficient and torque coefficient .