Numerical Simulation of the Nonstationary Process of the Shot Based on the Navier – Stokes Equations
Received 30 March 2022; accepted 08 June 2022; published 30 September 2022
2022, Vol. 18, no. 3, pp. 333-348
Author(s): Rusyak I. G., Tenenev V. A., Korolev S. A.
This paper gives a spatial mathematical formulation of the problem of internal ballistics
based on the Navier – Stokes equations, taking into account the swirl of the flow due to the
rotation of the projectile. The k-e model of turbulent viscosity is used. The control volume
method is used for the numerical solution of systems of equations. The gas parameters at
the boundaries of the control volumes are determined by the method of S. K. Godunov using
a self-similar solution to the problem of the decay of an arbitrary discontinuity. The MUSCL
scheme is used to increase the order of approximation of the difference method. For equations
written in a cylindrical coordinate system, an orthogonal difference grid is constructed using
the complex boundary element method. A comparative analysis of the results obtained with
different approaches to modeling the process of an artillery shot is given. Quantitative data are
presented on the influence of factors not previously taken into account on the characteristics of
the process.
Download File PDF, 851.88 Kb |
This work is licensed under a Creative Commons Attribution-NoDerivs 3.0 Unported License