标量伽辽金 MATLAB编码
时域间断伽辽金(Discontinuous Galerkin Time Domain,DGTD)法是一种特殊的有限元方法,该方法结合了有限元方法(Finite Element Method,FEM)和有限体积法(Finite Volume Method,FVM)的优点。既具有非结构体网格剖分的优势,又可以采用高阶基函数来提高计算精度。DGTD方法使用数值通量进行相邻网格的数据交换,实现单元级区域分解,从而避免了求解大型稀疏矩阵,提高了计算效率。作为一种新兴算法,该
A dissipative scheme based on the Verlet time-stepping algorithm is proposed to decrease the numerical dispersive error and eliminate spurious modes in unstructured grid-based discontinuous Galerkin time-domain (DGTD) method. The dissipative terms ar
Abstract—An improved Discontinuous Galerkin Time-Domain(DGTD) method based on regular hexahedron is proposed forreducing the computational complexity. The derivation process ofthe equations and calculation method is described. And theexplicit scheme
