Abstract
A new finite-difference method for the numerical solution of gas dynamics equations is proposed. This method is a uniform monotonous finite-difference scheme of second-order approximation on time and space outside of domains of shock and compression waves. This method is based on inputting adaptive artificial viscosity (AAV) into gas dynamics equations. In this paper, this method is analyzed for 2D geometry. The testing computations of the movement of contact discontinuities and shock waves and the breakup of discontinuities are demonstrated.
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References
I. V. Popov and I. V. Fryazinov, “Grid Method for Solving Gas Dynamics Equations Using Adaptive Artificial Viscosity,” in Proceeding of the 7th All-Russia Seminar on Grid Methods for Boundary Problems and Applications, 21–24 Sept. 2007, Kazan’ (Kazansk. Gos. Univ., Kazan, 2007), pp. 223–230.
I. V. Popov and I. V. Fryazinov, “Finite Difference Method for Solving Gas Dynamics Equations Using Adaptive Artificial Viscosity,” Mat. Model. 20(8), 48–60 (2008).
R. Liska and B. Wendroff, “Comparison of Several Difference Schemes on 1D and 2D Test Problems for the Euler Equations,” SIAM J. Sci. Comput. 25, 995–1017 (2003), http://www.math.ntnu.no/conservation.
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Popov, I.V., Fryazinov, I.V. Method of adaptive artificial viscosity. Phys. Part. Nuclei Lett. 8, 487–490 (2011). https://doi.org/10.1134/S1547477111050153
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DOI: https://doi.org/10.1134/S1547477111050153