Author(s)

F. Seller, K. Zimmermann, J. Raupp & G. Mathieu

Abstract

In the present study, the action of the hot and compressed propellant gas flow inside the barrel of a powder gun on heat transfer and barrel erosion has been investigated (1) theoretically using a boundary layer & ablation model developed at ISL and (2) experimentally measuring bore temperature and bore surface erosion in ISL's 60-mm-caliber erosion-gun. For theoretical description, an in- bore boundary layer model was developed using some basic assumptions for the interior gun tube flow. Prandtl's boundary layer equations were applied to solve the unsteady, compressible and turbulent boundary layer development for discrete projectile locations. Melting erosion at the inner surface is taken into account in this int

Keywords