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Advances in Aircraft and Spacecraft Science
  Volume 10, Number 2, March 2023 , pages 107-125

Numerical investigation of on-demand fluidic winglet aerodynamic performance and turbulent characterization of a low aspect ratio wing
A. Mondal, S. Chatterjee, A. McDonald Tariang, L. Prince Raj and K. Debnath

    Drag reduction is significant research in aircraft design due to its effect on the cost of operation and carbon footprint reduction. Aircraft currently use conventional solid winglets to reduce the induced drag, adding extra structural weight. Fluidic on-demand winglets can effectively reduce drag for low-speed flight regimes without adding any extra weight. These utilize the spanwise airflow from the wingtips using hydraulic actuators to create jets that negate tip vortices. This study develops a computational model to investigate fluidic on-demand winglets. The well-validated computational model is applied to investigate the effect of injection velocity and angle on the aerodynamic coefficients of a rectangular wing. Further, the turbulence parameters such as turbulent kinetic energy (TKE) and turbulent dissipation rate are studied in detail at various velocity injections and at an angle of 30
Key Words
    drag reduction method; fluidic winglet; induced drag; turbulent jets; wingtip injection
A. Mondal, S. Chatterjee, A. McDonald Tariang, L. Prince Raj and K. Debnath: Department of Aerospace Engineering and Applied Mechanics, Indian Institute of Engineering Science & Technology, Shibpur, Howrah 711103, India

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