Aerodynamic Performance Enhancement of Electromagnetic Gun Projectile Using Numerical Techniques

Rahman, Fariha and Srinivas, G (2021) Aerodynamic Performance Enhancement of Electromagnetic Gun Projectile Using Numerical Techniques. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 80 (2). pp. 136-152. ISSN 2289-7879

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Abstract

The unique study named aerodynamic performance enhancement of electromagnetic (EM) gun Projectile using numerical techniques is adopted to determine the better understanding of its aerodynamic characteristics. The earlier studies on EM gun projectile could explore its aerodynamic stability during flight whereas this unique research explains the enhancement of aerodynamic performance of EM gun projectile using numerical techniques. By using the Navier-Stokes numerical approach for a steady-state compressible flow, the Computational Fluid Dynamics (CFD) simulation of density, pressure, and temperature flow contours of the EM gun projectile flow field at different Mach number- 5 to 10 with an increment of 0.5 at zero angle of attack (AOA) have been analyzed. The results show an excellent agreement for the Mach numbers 5, 6, and 7. Moreover, to ensure accurate knowledge of the aerodynamic performance of EM gun projectile the numerical test is conducted several times using different turbulence models and differing the grid element sizes for Mach number 7. The results prove that at hypersonic speed the EM gun projectile performs in a much better way at Mach number 7. This best performance is analyzed by using the Spalart Allmaras (SA) turbulence model for grid size 5.4169e-03m. This work will help the researchers to do further improvements in EM gun projectile aerodynamic behaviors and also can be useful for military purposes

Item Type: Article
Uncontrolled Keywords: Gun; projectile; aerodynamic; CFD; analysis; turbulence
Subjects: Engineering > MIT Manipal > Aeronautical and Automobile
Depositing User: MIT Library
Date Deposited: 06 Sep 2021 08:39
Last Modified: 06 Sep 2021 08:39
URI: http://eprints.manipal.edu/id/eprint/157255

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