Calculation of the Unsteady Gas Flow Around a Projectile Moving Through a Gun Barrel

Authors

Valery Ponyavin, University of Nevada, Las VegasFollow
Roald Akberov, University of Nevada, Las VegasFollow
Yitung Chen, University of Nevada, Las VegasFollow
Hsuan-Tsung Hsieh, University of Nevada, Las VegasFollow
Darrell W. Pepper, University of Nevada, Las VegasFollow

Document Type

Conference Proceeding

Publication Date

11-15-2003

Publication Title

2003 ASME International Mechanical Engineering Congress

Publisher

American Society of Mechanical Engineers

First page number:

355

Last page number:

358

Abstract

The calculation of gas flow during the motion of a projectile in the gun barrel is a complicated computational task due of the presence of numerous factors, such as nonisothermicity, turbulence, changes in the shape of the computational domain with time, etc. In this study, an attempt to calculate the characteristics of gas flow around a projectile during the motion of the projectile in the gun barrel is undertaken. The flow is considered axisymmetrical, nonstationary, nonisothermal, compressible, and turbulent. For calculating the flow around the projectile, the finite volume method was employed. During the motion of the projectile, the flow pattern behind it changed from subsonic to supersonic. The results of the calculations are represented in figures depicting the flow at different moments of time. The figures show the fields of velocity, pressure and density, as well as the appearance of shock waves inside the gun barrel at subsonic and supersonic speeds.

Keywords

Firearms; Gas flow; Gun barrels; Projectiles; Shooting

Disciplines

Applied Mathematics | Fluid Dynamics | Mechanical Engineering

Language

English

Comments

Conference held: Washington, DC, USA, November 15–21, 2003

Permissions

Use Find in Your Library, contact the author, or interlibrary loan to garner a copy of the item. Publisher policy does not allow archiving the final published version. If a post-print (author's peer-reviewed manuscript) is allowed and available, or publisher policy changes, the item will be deposited.

Repository Citation

Ponyavin, V., Akberov, R., Chen, Y., Hsieh, H., Pepper, D. W. (2003). Calculation of the Unsteady Gas Flow Around a Projectile Moving Through a Gun Barrel. 2003 ASME International Mechanical Engineering Congress 355-358. American Society of Mechanical Engineers.