masterThesis
Análise aerodinâmica de perfis de asa para aeronaves experimentais tipo jn-1
Fecha
2011-02-25Registro en:
RIBEIRO, Fernanda Alves. Análise aerodinâmica de perfis de asa para aeronaves experimentais tipo jn-1. 2011. 95 f. Dissertação (Mestrado em Tecnologia de Materiais; Projetos Mecânicos; Termociências) - Universidade Federal do Rio Grande do Norte, Natal, 2011.
Autor
Ribeiro, Fernanda Alves
Resumen
The great importance in selecting the profile of an aircraft wing concerns the fact that
its relevance in the performance thereof; influencing this displacement costs (fuel
consumption, flight level, for example), the conditions of flight safety (response in critical
condition) of the plane. The aim of this study was to examine the aerodynamic parameters
that affect some types of wing profile, based on wind tunnel testing, to determine the
aerodynamic efficiency of each one of them. We compared three types of planforms, chosen
from considerations about the characteristics of the aircraft model. One of them has a
common setup, and very common in laboratory classes to be a sort of standard aerodynamic,
it is a symmetrical profile. The second profile shows a conFiguration of the concave-convex
type, the third is also a concave-convex profile, but with different implementation of the
second, and finally, the fourth airfoil profile has a plano-convex. Thus, three different
categories are covered in profile, showing the main points of relevance to their employment.
To perform the experiment used a wind tunnel-type open circuit, where we analyzed the
pressure distribution across the surface of each profile. Possession of the drag polar of each
wing profile can be, from the theoretical basis of this work, the aerodynamic characteristics
relate to the expected performance of the experimental aircraft, thus creating a selection
model with guaranteed performance aerodynamics. It is believed that the philosophy used in
this dissertation research validates the results, resulting in an experimental alternative for
reliable implementation of aerodynamic testing in models of planforms