Boopathy Govindarajan Profile Boopathy Govindarajan

Experimental investigation of double delta wings with different angles of attack at subsonic speeds

  • Authors Details :  
  • Balaji G,  
  • Bharath Kumar A,  
  • Boopathy G,  
  • Seenu N,  
  • Santhosh Kumar G

Journal title : Advances in Science, Technology & Innovation

Publisher : Springer Nature Switzerland

Online ISSN : 2522-8722

Page Number : 197-202

20 Views Original Article

The wind tunnel experimental study has been carried out on a double delta wing of different geometrical configurations such as 80°/45°, 75°/45° and 70°/45° sweep angles given as Model I, Model II and Model III with various freestream velocities from 10 to 40 m/s with a step of 10 m/s in Hindustan Institute of Technology and Science, Chennai, Low Speed Wind tunnel (HITSLSWT). The experiment is conducted for the measurement of lift and drag forces using single component force balance. The investigation was done to look into the effects of changing the double delta wing's leading edge sweep angles. Three differentmodels have been tested at various angles of attack ranging from0° to +16° and 0° to −16° with 4° and four different freestream velocities based on the delta wing’s chord. It is observed that the influence of variation of leading edge sweep angles affects the performance of aerodynamic characteristics of themodel. The increase in angle in attack with increased velocity gives better aerodynamic performance. This paper provides good insight into the aerodynamic force measurement of double delta wing and the low-speed performance of the models.

Article DOI & Crossmark Data

DOI : https://doi.org/10.1007/978-3-031-50024-4_20

Article Subject Details


Article Keywords Details



Article File

Full Text PDF

Article References

  • (1). Al-Garni, A. Z., Saeed, F., & Al-Garni, A. M. (2008). Experimental and numerical investigation of 65-degree Delta and 65/40 degree double-delta wings. Journal of Aircraft, 45(1), 71–76.
  • (2). Ashwin Kumar, B., Kumar, P., Das, S., & Prasad, J. K. (2018). Effect of leading-edge shapes on 81/45 double-delta wing at low speeds. Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 232(16), 3100–3107.
  • (3). Bilakanti, S., Bharat, K., Dubey, R., Sivaramakrishnan, A., & Ganeshan, V. (2013). Experimental investigation of the flow over an 80/45 rounded leading edge double- delta wing-body model. In 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition (p. 249).
  • (4). Dsouza, C. V. (2015). Numerical simulation of 65° delta wing and 65°/40° double delta wing to study the behaviour of primary vortices on aerodynamic characteristics.
  • (5). Grismer, D. S., & Nelson, R. C. (1995). Double-delta-wing aerodynamics for pitching motions with and without sideslip. Journal of Aircraft, 32(6), 1303–1311.
  • (6). Hu, T., Zhao, Y., Liu, P., Qu, Q., Guo, H., & Akkermans, R. A. (2021). Investigation on lift characteristics of double-delta wing pitching in various reduced frequencies. Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 235(14), 2081–2094.
  • (7). Mahdavi, Z. F., & Reza, S. M. (2021). An experimental investigation of the vortex merging over a cranked-delta wing at subsonic speed. Journal of Aerospace Engineering and Mechanics, 5(1).
  • (8). Manshadi, M. D., Eilbeigi, M., Sobhani, M. K., Zadeh, M. B., & Vaziry, M. A. (2016). Experimental study of flow field distribution over a generic cranked double delta wing. Chinese Journal of Aeronautics, 29(5), 1196–1204.
  • (9). Naimuddin, M., Chopra, G., Sharma, G., & Sharma, G. (2014). Experimental & computational study on compound delta wing. Aeronautical Engineering Department, Manav Rachna International University, Faridabad, ResearchGate.
  • (10). Saha, S., & Majumdar, B. (2013). Modeling and simulation on double delta wing. International Journal of Advanced Computer Research, 3(1), 201.
  • (11). Verhaagen, N. G. (2002). Effects of Reynolds number on flow over 76/40-degree double-delta wings. Journal of Aircraft, 39(6), 1045–1052.



More Article by Boopathy Govindarajan

Optimization of tensile and impact strength for injection moulded nylon 66/sic/b4c composites

The mechanical properties of different polymer matrix composites are discussed in this research study. these composites are multiphase materials in which reinforcing elements and a...

Optimization of process parameters for injection moulding of nylon6/sic and nylon6/b4c polymer matrix composites

In this research study, the mechanical properties of several polymer matrix composites are investigated. these composites are multi-phase materials in which reinforcing materials a...

Nanocoatings in medicine: revolutionizing healthcare through precision and potential

The use of nanotechnology in healthcare and medicine is crucial, particularly for nanocoatings. the therapeutic potential of nanocoatings on medical implants and devices is examine...

Numerical investigations of aerodynamics performance of blunt nose cone with aerodisk at hypersonic flow

The blunted nose cone with and without a sharp aerospike and an aerodisk of various diameters and lengths are investigated numerically in detail in the current study at a hypersoni...