The dynamics of supersonic flow past a new cusped leading edge airfoil Online publication date: Wed, 20-Dec-2023
by Saif Akram; Nadeem Hasan
Progress in Computational Fluid Dynamics, An International Journal (PCFD), Vol. 24, No. 1, 2024
Abstract: A new family of cusped leading edge airfoil with great implications in supersonic aircraft design has been proposed in this work. Numerical investigation of unsteady, viscous and laminar compressible flow past the new cusped leading edge airfoil and a conventional biconvex airfoil with the same maximum thickness is carried out and a systematic comparison of the aerodynamic parameters are reported. The value of Reynolds number is held constant which is 5 × 105 and the Mach number is varied from 1.25 to 2.13. The results are computed at three different angles of attack given as α = 0°, α = 10° and α = 20°. The comparison of aerodynamic parameters of the new airfoil with that of conventional biconvex supersonic airfoil shows that the new airfoil is much superior to the conventional airfoil. The L/D ratio of the new airfoil is higher than the biconvex circular-arc airfoil for almost all the flight conditions.
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