Capturing Shock Reeections: an Improved Ux Formula
نویسندگان
چکیده
Godunov type schemes, based on exact or approximate solutions to the Riemann problem, have proven to be an excellent tool to compute approximate solutions to hyperbolic systems of conservation laws. However, there are many instances in which a particular scheme produces inappropriate results. In this paper we consider several situations in which Roe's scheme gives incorrect results (or blows up all together) and propose an alternative ux formula that produces numerical approximations in which the pathological behavior is either eliminated or reduced to computation-ally acceptable levels.
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تاریخ انتشار 1996