International Research Journal of Innovations in Engineering and Technology - IRJIET International Open Access, Monthly, Peer Reviewed, Reputed Journal ISSN (online): 2581-3048

Impact Factor (2025): 6.9

DOI Prefix: 10.47001/IRJIET

Effect of Thickness-to-Chord Ratio and Chord Length on Aerodynamics of GOE-387 Airfoil

Abstract

This research presents CFD analysis of the two-dimensional subsonic flow over a GOE-387 airfoil at various thickness-to-chord ratios (t/C) and chord lengths, operating at a Reynolds number of 400,000. Lift Coefficient (CL), Drag Coefficient (CD), and CL/CD are investigated. The geometry of the airfoil is created using SolidWorks and Ansys Design Modeler. CFD analysis uses Ansys Fluent at various t/C from 5% to 25%, while the chord length varies from 100 to 200 cm. It was shown that variations in chord length have an effect in the form of increases and decreases in the value of the CL and a decrease in the CL/CD ratio, which is caused by the greater length value of the GOE-387 airfoil chord. In addition, variations in the thickness-to-chord ratio parameter also clearly influence the aerodynamic characteristics of GOE-387 airfoil. The greater the t/C, the more significant the lift and drag coefficients increase while the CL/CD ratio decreases.

Country : Indonesia

1 Nazaruddin Sinaga2 Bambang Yunianto3 Yosia Verse Pirie

  1. Department of Mechanical Engineering, Faculty of Engineering, Diponegoro University, Jl. Prof. Sudharto, SH., Tembalang, Semarang 50275, Indonesia
  2. Department of Mechanical Engineering, Faculty of Engineering, Diponegoro University, Jl. Prof. Sudharto, SH., Tembalang, Semarang 50275, Indonesia
  3. Department of Mechanical Engineering, Faculty of Engineering, Diponegoro University, Jl. Prof. Sudharto, SH., Tembalang, Semarang 50275, Indonesia

IRJIET, Volume 8, Issue 5, May 2024 pp. 280-287

doi.org/10.47001/IRJIET/2024.805038

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