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ON THE DETERMINATION OF ARTIFICIAL VISCOSITY FOR MIXED CELL COMPONENTS

E. A. Goncharov, V. Yu. Kolobyanin, Yu. V. Yanilkin
VANT. Ser.: Mat. Mod. Fiz. Proc 2010. Вып.2. С. 15-29.

The paper considers several ways of artificial viscosity determination for mixed cells components with two or more materials. The dependence of the calculation results on these ways is studied on test problems for three closing methods of gas-dynamics equations using the following suppositions: the components` velocities divergences are equal, the components` pressure increments are equal, the components` mass velocities after passing weak perturbation are equal.

Keywords: EGAK technique, gas dynamics, closure methods for gas dynamics equations, artificial viscosity.







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