Experimental And Numerical Estimation Of Gun Barrel Heating For
Rapid Fire
Author(s)
F. Seiler, G. Mathieu, H. Peter & K. Zimmermann
Abstract
Experimental and numerical estimation of gun
barrel heating for rapid fire
F. Seiler, G. Mathieu, H. Peter & K. Zirnmerrnann
French-German Research Institute of Saint-Louis (ISL),
Saint-Louis, France
Abstract
During machine gun or machine cannon firing the gun barrel can warm up to
very high temperatures. Depending on the firing cycle, especially for small
calibres, the barrel can be fired red-hot. In this case, the machine gun firing must
be immediately stopped for cooling. A theoretical calculation to predict the
heating of the gun barrel would be desirable to design the weapon according to
its future mission demands. For this purpose an interior ballistics model was
developed using Prandtl's boundary layer equations to solve the unsteady,
compressible and turbulent boundary layer development inside of a gun barrel
from the breech to the projectile. The solution for the wall shear stress uses the
Reynolds analogy to determine the heat flux into the barrel wall produced by the
temperature gra
Keywords
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