TY - JOUR T1 - Low Speed Numerical Aerodynamic Analysis of New Designed 3D Transport Aircraft AU - Sogukpinar, Haci PY - 2019 DA - February Y2 - 2019 DO - 10.19072/ijet.399171 JF - International Journal of Engineering Technologies IJET JO - IJET PB - İstanbul Gelişim Üniversitesi WT - DergiPark SN - 2149-0104 SP - 153 EP - 160 VL - 4 IS - 4 LA - en AB - In this study a new airfoil is designed by using aerodynamic features ofthe NACA 0012 airfoil and numerical calculation is conducted by using Spalart–AllmarasTurbulence Model and calculated lift and drag coefficients are compare withexperimental result to correlate numerical calculation accuracy of CDF model. Then, according to the new airfoil data, a threedimensional aircraft fuselage, and its wings are designed and, tail section isdesigned by using NACA 0012 airfoil. Finally, 3D model aircraft are simulatedfor cruise flight, climb and descent at the angle of attack +10 and -10 degreesrespectively. The simulation results are interpreted in terms of fluiddynamics. It is observedthat during the ascension and descent of the aircraft, very large vortices areformed by the low pressure effect occurring at the rear upper or lower part ofthe fuselage. Vortexesoriginating from the rear body are given with the wing tip vortexes in the samefigures but the vortex due to the back of the fuselage is found to be verylarge compared to the wingtip. Furthermore, foreach simulation, the formation of the wingtip vortexes are investigated and presented.It is observed that during ascending the vortex formation is formed in roll up and roll down in the phase of descending. KW - 3D simulation KW - Aircraft KW - vortex KW - airfoil KW - Aerodynamic Analysis KW - lift KW - drag CR - [1] C. R. Hanke and R. N. Donald, The Simulation Of A Jumbo Jet Transport Aircraft Volume I: Modeling Data, 1970, D6 -30643.[2] Florian R. Menter Review of the shear-stress transport turbulence model experience from an industrial perspective, International Journal of Computational Fluid Dynamics. 2009, 23:4, 305-316, DOI: 10.1080/10618560902773387. [3] A. Jameson, T. J. Baker and N. P. Weatherill. Calculation of Inviscid Transonic Flow over a Complete Aircraft, AIAA 24th Aerospace Sciences Meeting.1986, 86-0103.[4] J. Reuther,A. Jameson,J. Farmer,L. Martinelli,D. Saunders, Moffett Field, CAAerodynamic shape optimization of complex aircraft configurations via an adjoint formulation, AIAA Paper, 96-0094[5] Forrester T. Johnson , Edward N. Tinoco, N. Jong Yu. Thirty years of development and application of CFDat Boeing Commercial Airplanes, Seattle. Computers & Fluids 2005, 34 : 1115–1151. CR - [6] B. Aupoix, P.R. Spalart, Extensions of the Spalart–Allmaras turbulence model to account for wall roughness. International Journal of Heat and Fluid Flow 2003;24 : 454–462. CR - [7] D.C. Wilcox, Turbulence Modeling for CFD, 2nd ed., DCW Industries, 1998. CR - [8] The Spalart-Allmaras Turbulence Model, NASA Langley Research Center. https://turbmodels.larc.nasa.gov CR - [9] Allmaras, Steven R., Forrester T. Johnson, and Philippe R. Spalart. "Modifications and Clarifications for the Implementation of the Spalart-Allmaras Turbulence Model." Seventh International Conference on Computational Fluid Dynamics (ICCFD7). 2012. CR - [10] Deck, S., Duveau, P., d'Espiney, P., & Guillen, P. (). Development and application of Spalart–Allmaras one equation turbulence model to three-dimensional supersonic complex configurations. Aerospace Science and Technology.2002, 6(3), 171-183. CR - [11] 9. Ladson CL. Effects of Independent Variation of Mach and Reynolds Numbers on the Low-Speed Aerodynamic Characteristics of the NACA 0012 Airfoil Secti n. NASA TM 4074. (1988) UR - https://doi.org/10.19072/ijet.399171 L1 - https://dergipark.org.tr/tr/download/article-file/677048 ER -