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Characteristic-based finite volume scheme for 1D Euler eouations
Authors:Yan GUO  Ru-xun LIU
Abstract:In this paper, a high-order finite-volume scheme is presented for the one-dimensional scalar and inviscid Euler conservation laws. The Simpson's quadrature rule is used to achieve high-order accuracy in time. To get the point value of the Simpson's quadrature, the characteristic theory is used to obtain the positions of the grid points at each sub-time stage along the characteristic curves, and the third-order and fifth-order central weighted essentially non-oscillatory (CWENO) reconstruction is adopted to estimate the cell point values. Several standard one-dimensional examples are used to verify the high-order accuracy, convergence and capability of capturing shock.
Keywords:hyperbolic equation  finite volume method  characteristic theory  WENO reconstruction  Runge-Kutta method
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