Aerodynamic Performance Enhancement of Electromagnetic Gun Projectile Using Numerical Techniques

Authors

  • Fariha Rahman Department of Aeronautical and Aviation Science and Engineering, College of Aviation Technology affiliated with National University of Bangladesh, Gazipur, Dhaka-1230, Bangladesh
  • Srinivas G Department of Aeronautical and Automobile Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education (MAHE) Manipal – 576104. Karnataka, India

DOI:

https://doi.org/10.37934/arfmts.80.2.136152

Keywords:

Gun, projectile, aerodynamic, CFD, analysis, turbulence

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.

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Published

2021-03-05

How to Cite

Rahman, F. ., & G, S. (2021). Aerodynamic Performance Enhancement of Electromagnetic Gun Projectile Using Numerical Techniques. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 80(2), 136–152. https://doi.org/10.37934/arfmts.80.2.136152

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