STUDY OF THE COMPUTATIONAL PARAMETERS EFFECT AT NUMERICAL SIMULATION OF THE EXPLOSIVE TRANSFORMATION PROCESS OVER MC KINETICS IN THE LEGAK TECHNIQUE
N. A. Volodina, I. Yu. Myshkina, V. F. Spiridonov
VANT. Ser.: Mat. Mod. Fiz. Proc 2010. Вып.2. С. 3-14.
During numerical simulation of the detonation development and distribution process under the LEGAK technique the technology of calculations with the MC kinetics on Lagrangian-Eulerian grids was perfected. The behavior of the calculation results with the MC kinetics was studied on the gradually thickening grids. The effect of the time step, type of the calculation quadratic viscosity and mixed cells thermodynamic parameters calculation algorithm on the numerical solution is studied.
The parameters of the MC kinetics model for TATB-type explosives were specified more precisely. The calculation results for 1D and 2D problems as well as their comparison with experimental data obtained in IFV VNIIEF are presented in the paper. Keywords: LEGAK technique, MC detonation kinetics, equation of state of explosive.
|
English
