【摘要】 以准确Riemann解为基础,建立了求解一维非平底浅水流动方程的Godunov格式,用"水位方程法(WaterLevelFormulation,WLF)"求解Riemann解,结合中心差分和Riemann解离散底坡项,保证了计算格式的和谐性。经算例验证,方法健全、通用,且分辨率高。更多还原

【Abstract】 Based on exact the Riemann solution, this paper presents a Godunovtype scheme for 1D shallowwater equations with uneven bottom Central difference and the Riemann solution with "water level formulation" are used in the discretisation of the source term to keep the scheme wellbalanced Numerical experiments are presented to demonstrate that the scheme is robust, versatile and high in resolution更多还原