Reynolds Averaged Navier–Stokes (RANS) simulations have been performed over a civil transport aircraft at Mach number 0.17. The present work aims to understand the effect of various Reynolds number on the aerodynamic performance of aircraft since the Reynolds number is considered as a most important parameter in fluid dynamics. The current study also helps to identify the various hot spots for higher drag so that the design team can focus on these specific areas to minimise the total drag. The present CFD solver uses a Roe scheme for convective flux discretisation and Spallart-Allmaras turbulence model for eddy viscosity computations. Calculations showed that with an increase in Reynolds number, the maximum lift coefficient increases and minimum drag coefficient decreases. The paper also highlights the sectional Cp plots and pressure contours along with the velocity streamlines at different span-wise stations of an aircraft wing. The strength of vortex over a midboard flap gradually decreases with the increase in Reynolds number. The drag of various aircraft components is also shown in the form of Pie chart so that the major drag contributing parts can be identified.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Effect of Reynolds Number on Typical Civil Transport Aircraft


    Additional title:

    Lect.Notes Mechanical Engineering


    Contributors:


    Publication date :

    2021-03-19


    Size :

    10 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




    Effect of Reynolds Number on Typical Civil Transport Aircraft

    Shirbhate, Vishal S. / Kumar, K. Siva / Babu, K. Madhu | TIBKAT | 2021


    Effect of underwing frost on a transport aircraft airfoil at flight Reynolds number

    Bragg, M. B. / Heinrich, D. C. / Valarezo, W. O. et al. | AIAA | 1994



    Low Reynolds number, long endurance aircraft design

    FOCH, RICHARD / AILINGER, KEVIN | AIAA | 1992