Document Type : Scientific extension

Authors

1 Academic Trainer, Departement of Mechanics Engineering, Sirjan Branch, Islamic Azad University Sirjan, Kerman, IRAN

2 Professor, Departement of Mechanics Engineering, Ferdosi University Mashhad, y Mashhad, iran

3 Professor, Research Center of Air Industries, Tehran, IRAN

Abstract

Nowadays, with regard to the new methods of simulation, the designof airfoils have greatly changed and this allows the evaluation of the effect of various factors on the efficacy of airfoils. Thus, choosing the type of wing would be so important; in another term, designing a proper wing is what an airplane designer is mainly concerned with. In this project, the effect of airfoil wave surface on the changes of coefficients of lift and drag are studied. Graphs of lift and drag coefficients, Cantor Distribution Pressure and Cantor Distribution speed are alsoinspected in different attack angles. The achieved results indicate that wavy airfoils atspecific attack angle and also near the angle of extinction have a better performance than airfoils without wavy surface. The results of airfoil performance in different attack angles shown throughgraphs indicate the proper performance of wavy wing.

Keywords

[1]    Sarhangi, E., Tajfar, M., Efficiency of biological airflow in the bottom of the Rindolds, Thesis Bachelor), Amir Kabir University of Technology, 2006, (in persion).
[2]    Sheng-Xiam, Sh. and Ying–ZhengLiu, G., “Anexperimental study of flow around a bio-inspired at reynolds number ,” Journal of Hydrodynamics, Serb ,Vol. 24, No. 3, 2012, pp. 410-419.
[3]    Mijeonykim, Huyunsikyoou, yae Hwan gung, “Hydrodunamics Characterisitics for flow around way wings with different wave lengths,” International Journal of Naral Architecture and ocean Engineering, Vol. 94, Issue 4, 2012, pp. 447-459.
[4]     Serson, D., & Meneghini, J. R. (2015). Numerical study of wings with wavy leading and trailing edges. Procedia IUTAM14, 563-569.
[5]     T.J.Filent, M.C.Jermy, T.H.New, W.H.HO, “Computational study of pitching bio-inspired corrugated airfoil,” International Journal of Heat and Fluid flow, vol. 65, 2017, pp. 328-341.
[6]     Jamshidi, Nima,. Thinking, Damon, Computational Fluid Dynamics Training with Gambi& Fluent, Amir Kabir University of Technology Jahad Publication, First Edition, 2009, (in persian).
[7]     DehghaniSanićh, Mohammad Amin. Numerical Simulation with Fluoent Software, Naghos Publishing, Second Edition, 2010, (in Persian).
[8]     Donnof, A. D. and Abbot, I., Translated by Kashanian, M.,. The hypothesis of the wing sections, Khabaril publication, first edition, 1369, (in Persian)
[9]     Bernad, R.A., Philipat, D.R., Translation by pasandedehFard, Mohammad. Vaezi, Mehdi, Airplane Flight, Ferdowsi University Press, Mashhad, Third Edition, 2010, (in Persian).
[10]  Mehrabian, Mozafarali, Boundary layer theory, ShahidBahonar University Press, 2005 First Edition, (in persian).
[11]  Nakayama, u. Boucher, R.F, Ahmadi, F. and ShojaeiFard, M., Fluid Mechanics, Publication of the University of Science and Technology, First Edition, 2003, (in persia).