Volume 23, Issue 2 (February 2023)
Modares Mechanical Engineering 2023, 23(2): 93-105 |
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nazemian alaei M, valipour M S. An experimental and numerical investigation of vortices on the effect of vortices on the performance of a wingsuit. Modares Mechanical Engineering 2023; 23 (2) :93-105
URL: http://mme.modares.ac.ir/article-15-62371-en.html
URL: http://mme.modares.ac.ir/article-15-62371-en.html
1- Semnan University , mohsen.nazemian@semnan.ac.ir
2- Semnan University
2- Semnan University
Abstract: (1098 Views)
Wingsuit flying is one of the most popular flight disciplines in recent decades. In the aviation profession, efficiency and safety are paramount concerns for costume designers. An article in this issue examines how waveform changes to the wing surfaces of a wingsuit model improves aerodynamic performance. In order to increase performance, vortices are produced inside the boundary layer that improve the exchange of motion. In this experimental and numerical study, we investigate the formation and evolution of vortices in the Reynolds number range of 106 and provide insights into flow patterns on surfaces with geometric changes. A detailed study of flow structure can be obtained from experimental and numerical evaluations. According to the results, there are significant vortex generators near the backpack due to high pressure. Immediately after the creation of these vortices, the flow is drawn and spread on the surface of the wing in three dimensions. As a result of the angle of attack, the wing surface separates prematurely. Based on the lift and drag coefficients, the study model showed the best performance in flight at an angle of attack of 10 degrees for this flow regime.
Keywords: Wingsuit, Flow pattern, aerodynamic coefficients, wind tunnel, Computational fluid dynamics
Article Type: Original Research |
Subject:
Aerodynamics
Received: 2022/06/21 | Accepted: 2022/12/26 | Published: 2023/01/30
Received: 2022/06/21 | Accepted: 2022/12/26 | Published: 2023/01/30
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