【摘要】 在二维理想锋生数值模式的基础上,用两类差分格式进行数值试验比较.计算结果表明,无论是在大气数值模拟中广泛使用的总能量守恒型差分格式,还是在高速流中捕捉接触间断较好的反扩散格式,对锋生过程均有较好的模拟能力,反扩散格式的效果更好一些.更多还原

【Abstract】 Based on the model of ideal frontogenesis in two dimensions, two kinds of finite difference scheme is tested. One scheme is a total energy conservation scheme that is used widely in atmosphere simulation, and the other one is an artificial compression method (ACM) that is used to capture the contact discontinuity in high\|speed flows. Both of them have great abilities to simulate frontogenesis. But the effect of the ACM is better than the other to some extent.更多还原