把标量方程的WENO Limiter更新到了方程组的情形,可用于求解2维Euler方程组。

Reference:

[1] Jun Zhu, Xinghui Zhong, Chi-Wang Shu, Jianxian Qiu. Runge–Kutta discontinuous Galerkin method using a new type of WENO limiters on unstructured meshes.