Numerical experiments on the determination of unsteady state temperature distribution in a solid propellant rocket motor.

Abstract

The approximate analytical method used in the present study enables the research engineer and applied scientist to find a unified time-dependent solution which is valid regardless the shape of the doubly connected cross section. Admittedly other approximate methods such as the finite difference and the finite elements techniques are more general, but their accuracy is usually tested considering domains of very simple geometry, e.g. the circle or rectangle. The approach followed in this study allows for the finding of analytical solutions in other domains, thus providing an independent check of the accuracy of more general methods.