Abstract
Wingtip vortices arise from the pressure difference between the top and bottom surfaces of the wing, and stimulate downwash of the airflow. This results in additional drag, known as lift-induced drag, which significantly adds to the overall drag on the aircraft. It also results in the reduction of effective lift. Several wingtip devices such as winglets are used to improve wing performance by the mitigation of wingtip vortices. The goal of this study is to analyse a method of increasing the lift to drag ratio of finite wings, at transonic conditions. A non-conventional method of improving performance, wingtip fluid injection is studied. Computational fluid dynamics tools were used to examine the improvement in wing performance, and it was observed that a higher lift to drag ratio was present for wings with fluid injection. This can be translated into better fuel economy, higher range or more payload capacity.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Similar content being viewed by others
Abbreviations
- e:
-
Oswald efficiency factor
- AR:
-
Aspect ratio
- CD:
-
Coefficient of drag
- CL:
-
Coefficient of lift
- CP:
-
Coefficient of pressure
- α:
-
Angle of attack (°)
- ρ:
-
Density of air [kg/m3]
- L/D:
-
Lift to drag ratio
References
Thimmegowda H, Krishnan Y, Gisa G (2021) Computational study on wingtip vertical fluid injection for induced drag reduction. In: Proceedings of the 8th international conference on fluid flow, heat and mass transfer
Zaccara M, Paolillo G, Greco CS, Astarita T, Cardone G (2021) Flow control of wingtip vortices through synthetic jets. Exper Therm Fluid Sci
El Maani R, Radi B, El Hami A (2018) CFD analysis of the transonic flow over a NACA 0012 Airfoil, Research gate, 2018. 10.2149
de Mattos BS, Macedo AP, da Silva Filho DH (2003) Considerations about winglet design. In: Applied aerodynamics conference on AIAA 2003-3502
Öztürk Ş, Örs İ (2020) An overview for effects on aerodynamic performance of using winglets and wingtip devices on aircraft. Int J Aeron Astron
Devenport WJ, Rife MC, Liapis SI, Follin GJ (1996) The structure and development of a wing-tip vortex. J Fluid Mech 312:67–106
Yahaya N, Ismail AMM (2015) Investigation of Whitcomb’s winglet flow behaviour using PIV and FLUENT. J Adv Res Fluid Mech Thermal Sci
ANSYS Inc. (2015) ANSYS fluent theory guide 12.0
White FM (2011) Fluid mechanics. McGraw-Hills, New York, USA
Anderson JD (2011) Introduction to flight. McGraw-Hills, New York, USA
Acknowledgements
We would like to extend our gratitude firstly to Dr. V. Krishna, our guide for this project. We would also like to thank the faculty and students of PES University for their support and advice. We appreciate the help, resources, and assistance from the students and faculty of the PMR lab, PES University. Lastly, we would like to thank our parents for their constant backing and encouragement.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2024 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Nagaraj, V., Purushan, D., Patra, A., Prakash, N., Krishna, V. (2024). Computational Study on Wingtip Fluid Injection for Enhancing Wing Performance. In: Singh, K.M., Dutta, S., Subudhi, S., Singh, N.K. (eds) Fluid Mechanics and Fluid Power, Volume 2. FMFP 2022. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-99-5752-1_37
Download citation
DOI: https://doi.org/10.1007/978-981-99-5752-1_37
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-99-5751-4
Online ISBN: 978-981-99-5752-1
eBook Packages: EngineeringEngineering (R0)