FINITE-STATE INDUCED FLOW MODELS .2. 3-DIMENSIONAL ROTOR DISK

被引：124

作者：

PETERS, DA

HE, CJ

机构：

[1] Center for Computational Mechanics, Washington University, St. Louis, MO, 63130

[2] Advanced Rotorcraft Technology, Mountain View, CA, 94043, 1685 Plymouth St.

来源：

JOURNAL OF AIRCRAFT | 1995年 / 32卷 / 02期

基金：

美国国家航空航天局;

关键词：

Correlation methods - Flight dynamics - Lift - Mathematical models - Rotors - Three dimensional;

D O I：

10.2514/3.46719

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

In Part I of this two-part article, we developed a finite state induced flow model for a two-dimensional airfoil. In this second part, we develop a finite state induced flow model for the three-dimensional induced flow for a rotor. The coefficients of this model are found in a compact closed form. Although the model does not presuppose anything about the source of lift on the rotating blades, applications are given in which the Prandtl assumption is invoked. That is, the two-dimensional lift equations are used at each radial station, but with the inflow from the three-dimensional model. The results are shown to reduce (in several special cases) to Prandtl-Goldstein theory, Theodorsen theory, Loewy theory, dynamic inflow, and blade-element momentum theory. Comparisons with vortex-filament models and with experimental data in hover and forward flight also show excellent correlation.

引用

页码：323 / 333

页数：11

共 29 条

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