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.
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机译：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.
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