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THE DIFFERENCE SCHEME APPROXIMATION VISCOSITY AND SIMULATIONS OF VISCOUS FLUID FLOWS

Yu. V. Yanilkin, O. O. Toporova, A. L. Stadnik, L. E. Korzakova
VANT. Ser.: Mat. Mod. Fiz. Proc 2016. Вып.3. С. 3-17.

The paper briefly describes the original equations and difference scheme used for the simulation of viscous and inviscid gas dynamic multimaterial flows in Eulerian variables with the EGAK code. A theoretical estimate of the scheme viscosity of the difference scheme used in the code is presented. Test computations have been carried out and they demonstrate the validity of using the theoretical estimate of the scheme viscosity in simulations for the particular problems.

Keywords: molecular viscosity, scheme viscosity, Eulerian method, the EGAK code.







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