Construction of the Asymmetric Joukowski Airfoil through Karman-Trefftz Transformation, for n = 2, using GeoGebra 5.0
DOI:
https://doi.org/10.35819/remat2020v6i2id3895Keywords:
Joukowski Transformation, Karman-Trefftz Transformation, Asymmetric Joukowski Airfoil, GeoGebraAbstract
The Conform Transformation is a mathematical tool that allows the construction of complex geometries from simpler geometries. The Joukowski airfoil exemplifies this statement, however, obtaining it by conventional mathematical means is complex, making it necessary to use computational resources. This article demonstrates a technique whose purpose is to facilitate the understanding of the Joukowski Transformation, which consists of mapping a circumference in the asymmetric Joukowski airfoil using GeoGebra. The Joukowski Transformation was obtained through the Karman-Trefftz Transformation, for n = 2, using compositions of complex functions. The simulations were performed using the GeoGebra 5.0 software, which made it possible to construct and obtain mathematical equations, on the real plane, of the geometric figures involved in the transformations until obtaining the asymmetric Joukowski airfoil. The results of the simulation were satisfactory, such that the equations of the geometric shapes until the construction of the airfoil were successfully obtained.
Downloads
References
ABLOWITZ, M. J.; FOKAS, A. S. Complex Variables Introduction and Applications. 2. ed. New York: Cambridge, 2003. p. 342-343.
ACHESON, D. J. Elementary Fluid Dynamics. 1. ed. Oxford, New York: Clarendon Press, 2005. p. 136-140.
ÁVILA, G. Variáveis Complexas e Aplicações. 3. ed. Rio de Janeiro: LTC, 2013. p. 235-238.
BALDIN, Y. Y. Utilizações diferenciadas de recursos computacionais no ensino de Matemática (CAS, DGS e Calculadoras Gráficas). In: COLÓQUIO DE HISTÓRIA E TECNOLOGIA NO ENSINO DE MATEMÁTICA, 1., 2002, Rio de Janeiro. Anais... Rio de Janeiro: UERJ, p. 27-36, 2002.
BASNIAK, Maria Ivete; ESTEVAM, Everton José Goldoni. O GeoGebra e a Matemática da Educação Básica: frações, estatística, círculo e circunferência. 1. ed. Curitiba: Íthala, 2014. p. 13.
BATCHELOR, G. K. An Introduction to Fluid Dynamics. 1. ed. New York: Cambridge, 2000.
HALL, Jonas; LINGEFJÄRD, Thomas. Mathematical Modeling Applications with GeoGebra. 1. ed. Nova Jersey: Wiley, 2017.
KYTHE, Prem K. Computational Conformal Mapping. 1. ed. Danvers: Biräuser Boston, 1998.
MILNE-THOMPSON, L. M. Theoretical Hydrodynamics. 5. ed. New York: Dover, 1996.
PONTES, J.; MANGIAVACCHI, N. Fenômenos de Transferência com Aplicações às Ciências Físicas e à Engenharia. 1. ed. Rio de Janeiro: SBM, 2016.
POPE, A. Basic Wing and Airfoil Theory. 5. ed. New York: McGraw-Hill, 1951.
VALLENTINE, H. R. Applied Hydrodynamics. 2. ed. New York: Springer, 1967.
Downloads
Published
Issue
Section
License
Copyright (c) 2020 REMAT: Revista Eletrônica da Matemática
This work is licensed under a Creative Commons Attribution 4.0 International License.
REMAT retains the copyright of published articles, having the right to first publication of the work, mention of first publication in the journal in other published media and distribution of parts or of the work as a whole in order to promote the magazine.
This is an open access journal, which means that all content is available free of charge, at no cost to the user or his institution. Users are permitted to read, download, copy, distribute, print, search or link the full texts of the articles, or use them for any other legal purpose, without requesting prior permission from the magazine or the author. This statement is in accordance with the BOAI definition of open access.