Numerical investigation of the mutual effects of weapons and fighter aircraft wings on their aerodynamic characteristics

Hadidoolabi, Mostafa; Soleymani Alashti, Mohammadreza; Ansarian, Hossein; Sadati, Seyed Hossein

Numerical investigation of the mutual effects of weapons and fighter aircraft wings on their aerodynamic characteristics

Articles in Press

Document Type : Research Paper

Authors

Mostafa Hadidoolabi

Mohammadreza Soleymani Alashti

Hossein Ansarian

Seyed Hossein Sadati

Malek Ashtar University of Technology

Abstract

Today, fighter planes have high agility and can carry a large number of military weapons to destroy enemy bases. For this reason, special attention is paid to the capability of fighter planes to carry weapons. In this research, the effect of installing air-based weapons in different sections of a fighter plane's wing on aerodynamic characteristics has been investigated. To validate the used simulation method, the results of the F16 airplane wind tunnel test have been used. The aerodynamic coefficients of the fighter plane's wing in the unarmed state and the presence of weapons under the wing have been compared and the pressure distribution at different points has been calculated. Also, the influence of the wing on the aerodynamic coefficients of the installed missiles and the pressure distribution in each one has been investigated. The results of this research show that the weapons do not have much effect on the aerodynamic coefficients of the wing. Still, due to the interference effects between the wing and the weapons, the airplane wing has a great influence on the aerodynamic coefficients of the weapons, and with the installation of the weapons, the pressure distribution in different sections of the wing changes.

Keywords

Fighter Aircraft

Weapons

Aerodynamic Coefficients

Pressure Distribution

Computational Fluid Dynamics

Subjects