The CESE method satisfies physical concept and casts the governing equation in integral form obeyed conservation law, which has a second order accuracy in both space and time.

• 时空守恒法是以物理观念为出发点，利用统御方程式满足物理通量的守恒定律，在时间和空间上均具有二阶准确度的新数值方法。