Casbar User's Guide

The Collaborative Australian Ballistics Research code, Casbar, is a simulation tool for the analysis of the interior ballistics of guns. The code solves a two-phase, axisymmetric form of the governing equations for the flow of gas and particulates in the gun, and accommodates multiple projectiles within the simulation. Casbar is also suitable for investigating intermediate ballistics, and can alternatively be used as a general compressible flow solver. Casbar supports user-customised types of deterred or undeterred propellant grain, flexible definition of initial conditions and ignition sources, and various constitutive submodels for simulating interphase drag and intergranular stress. This document, the Casbar Users Guide, explains the use of the code and available options, and provides a worked example with corresponding input files.