其他摘要：The computational magnetogasdynamics is an important tool for the development of the interdisciplinary technologies for aerospace design. In this work is presented a modification of the original Harten-Yee TVD scheme by incorporating a new sonic fix for the acoustic causality points using the finite volume technique. The proposed sonic fix was previously implemented to solve timedependent, two-dimensional, ideal magnetogasdynamics equations. In this paper a new test case is simulated: 2.5D Tóht magnetogasdynamics Riemann problem. The numerical results obtained using the new sonic fix has shown to reduce the oscillations compared with the results calculated by the traditional Harten-Yee TVD scheme. The results also show that the new scheme is robust.
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