e-ISSN 2231-8526
ISSN 0128-7680

Home / Special Issue / JST Vol. 32 (S1) 2024 / JST(S)-0590-2023


Performance Evaluation of UAV Airfoil Under Various Ground Conditions

Dhanya Prakash R Babu, Madhesh Devasenan, Ganeshan Pushpanathan and Mukesh Raju

Pertanika Journal of Science & Technology, Volume 32, Issue S1, December 2024


Keywords: Aerodynamic characteristics, DATCOM, ground effects, h/c ratio, roughness

Published on: 19 January 2024

Investigation of ground effects on Unmanned Aerial Vehicle (UAV) are limited. The UAV''s ground effect on the water surface and irregular surfaces has not been studied well. The principal objective of this research is to apply numerical solutions to investigate the flow physics and aerodynamic characteristics of selected NACA4412 airfoil for different h/c and surface roughness conditions in the ground effect scenario. The k-ω turbulence model and compressible RANS equations are solved using the Finite Volume Method (FVM). The simulated data is authenticated with the reference data and compared with the DATCOM data. The results express that the lift coefficient variations for various surface roughness are affected by the h/c proportion. The drag coefficient for various roughness has the same pattern for different ratios and almost has the same difference from high to lower values. The result shows that the DATCOM code cannot predict the aerodynamic characteristics with ground effects.

  • Abney, E., & McDaniel, M. (2005). High angle of attack aerodynamic predictions using missile datcom. In 23rd AIAA Applied Aerodynamics Conference (p. 5086). AIAA.

  • de Divitiis, N. (2005). Performance and stability of a winged vehicle in ground effect. Journal of Aircraft, 42(1), 148-157.

  • Gao, B., Qu, Q., & Agarwal, R. K. (2018). Aerodynamics of a transonic airfoil in ground effect. Journal of Aircraft, 55(6), 2240-2255.

  • Jamei., S., Maimun, A., Mansor, S., Azwadi, N., & Priyanto, A. (2012). Numerical investigation on aerodynamic characteristics of a compound wing-in-ground effect. Journal of Aircraft, 49(5), 1297-1305.

  • Kefalas, P., & Margaris, D. P. (2018). Aerodynamic analysis of a light aircraft using computational fluid dynamics. In 8th International Conference from Scientific Computing to Computational Engineering. LFME.

  • Othman, N. (2017). Prediction of aerodynamic derivatives using Computational Fluid Dynamics (CFD) at transonic speed. Journal of Transport System Engineering, 4(1), 8-16.

  • Page, G. J., & McGuirk, J. J. (2009). Large Eddy Simulation of a complete harrier aircraft in ground effect. The Aeronautical Journal, 113(1140), 99-106. 10.1017/S0001924000002827

  • Papadopoulos, C., Mitridis, D., & Yakinthos, K. (2021). Conceptual design of a novel unmanned ground effect vehicle. In IOP Conference Series, Materials Science and Engineering, (Vol. 1024, No. 1, p. 012058). IOP Publishing.

  • Paul, J. L., Vasile, J. D., & DeSpirito, J. (2021). Comparison of aeroprediction methods for guided munitions. In AIAA 2021Forum (p. 0024). AIAA.

  • Qu, Q., Jia, X., Wang, W., Liu, P., & Agarwal, A. K. (2014a). Numerical simulation of the flowfield of an airfoil in dynamic ground effect. Journal of Aircraft, 51(5), 1659-1662.

  • Qu, Q., Lu, Z., Liu, P., & Agarwal, A. K. (2014b). Numerical study of aerodynamics of a wing-in-ground-effect craft. Journal of Aircraft, 51(3), 913-924.

  • Ramshankar, P., Sashikkumar, M., Ganeshan, P., & Raja, K. (2023). Experimental investigation of hybrid composites using biowastes and Calotropis gigantea: An eco-friendly approach. Global NEST Journal, 25(4), 70-76.

  • Roozitalab, E., & Kharati-Koopaee, M. (2021). Effect of Gurney Flap on the aerodynamic behavior of an airfoil in mutational ground effect. Proceedings of the Institution of Mechanical Engineers, Part G, Journal of Aerospace Engineering, 235(3), 339-355.

  • Sharma, A., Padthe, A., & Friedmann, P. P. (2021). Helicopter shipboard landing simulation including wind, deck motion and dynamic ground effect. Journal of Aircraft, 58(3), 467-486.

  • Vinayagar, K., Ganeshan, P., Raja, P. N., Hussain, M. S. Z., Kumar, P. V., Ramshankar, P., Mohanavel, V, Mathankumar, N., Raja, K., & Bezabih, T. T. (2022). Optimization of crashworthiness parameters of thin-walled conoidal structures. Advances in Materials Science and Engineering, Article ID 4475605.

  • Zheng, Y., Qu, Q., Liu, P., Wen, X., & Zhang, Z. (2021). Numerical analysis of the porpoising motion of a blended wing body aircraft during ditching. Aerospace Science and Technology, 119, 107131.

ISSN 0128-7680

e-ISSN 2231-8526

Article ID


Download Full Article PDF

Share this article

Recent Articles