2
Professor, Ferdowsi University, Mashhad, Mashhad, Iran
3
Assistant Professor, University Ferdowsi, Mashhad, Mashhad, Iran
Abstract
Conventional Wrap-Around Fins (WAF) have unique aerodynamic characteristics, such as changing the roll moment direction with increasing Mach number and the nonlinearity of the aerodynamic coefficients. The placement of Wrap-Around Fins against each other eliminates their aberrant and non-linear aerodynamic characteristics and provides the condition with a less complicated guidance system. In this research, the effects of curvature of Opposite Wrap-Around Fins (OWAF) on the aerodynamic performance of the projectile has been investigated. This investigation has been done numerically, and the results were compared with the wind-tunnel accessible test data, which have good accuracy. The simulation has been carried out at a Mach number of 1.5 and an angle of attack of 0 and 5 degrees, assuming a turbulent compressible flow; the physics of the flow around the fins has been investigated. The results showed that increasing fins curvature increases lift and drag coefficients by 7% and pitch moment up to 20%. Also, the fin curvature eliminate flow separation in junction of fin leading edge and body.
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Bagheri, A., Pasandide Fard, M., & Esmaeili, A. (2023). Numerical investigation of the aerodynamics effects of fins curvature of opposite wrap-around fins and comparison with flat fins in supersonic flow. Fluid Mechanics & Aerodynamics, 12(1), 27-37.
MLA
Amir Bagheri; Mahmoud Pasandide Fard; Ali Esmaeili. "Numerical investigation of the aerodynamics effects of fins curvature of opposite wrap-around fins and comparison with flat fins in supersonic flow", Fluid Mechanics & Aerodynamics, 12, 1, 2023, 27-37.
HARVARD
Bagheri, A., Pasandide Fard, M., Esmaeili, A. (2023). 'Numerical investigation of the aerodynamics effects of fins curvature of opposite wrap-around fins and comparison with flat fins in supersonic flow', Fluid Mechanics & Aerodynamics, 12(1), pp. 27-37.
VANCOUVER
Bagheri, A., Pasandide Fard, M., Esmaeili, A. Numerical investigation of the aerodynamics effects of fins curvature of opposite wrap-around fins and comparison with flat fins in supersonic flow. Fluid Mechanics & Aerodynamics, 2023; 12(1): 27-37.
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