Study of the Stall-Spin Phenomena Using Analysis and Interactive 3-D Graphics

Author: Dubois, Pascale Claude

Year: 1986

Degree: Engineer's thesis

Advisor: Culick, Fred E. C.

Committee Members: Culick, Fred E. C.; Roshko, Anatol; Liepmann, Hans Wolfgang

Option: Aeronautics

DOI: 10.7907/SFMF-Z114

Abstract

The purpose of this study is to gain a better understanding of the nonlinear stall-spin phenomenon through numerical analysis and interactive 3-D graphics.

The linear aerodynamic range was thoroughly examined for the NAVION, a light aviation aircraft. Nonlinear aerodynamic behavior was modeled by adding nonlinearities to the lift, pitching and rolling moments. The results of this analysis are promising; however, a more sophisticated model is needed to fully simulate the stall-spin phenomenon.

A graphic tool is described which allows the user to interact with the simulation process. This gives the user a "feel" for the dynamics of aircraft and effectively displays the characteristic features of the dynamic model.

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