一种非结构网格上求解拉格朗日形式可压缩欧拉方程的二阶RKDG方法

赵晓龙,邱美兰,蔚喜军,卿芳,邹世俊

A Second-Order RKDG Method for Lagrangian Compressible Euler Equations on Unstructured Triangular Meshes

Xiaolong Zhao,Meilan Qiu,Xijun Yu,Fang Qing,Shijun Zou

表 1 格式关于密度的误差和精度

$h({\cal D}(t))$ $L^{1}$ error order $L^{2}$ error order $L^{\infty}$ error order 7.07E-002 2.1029E-002 2.4996E-002 6.8346E-002 3.51E-002 5.5261E-003 1.9280 6.7907E-003 1.8800 1.7204E-002 1.9900 1.76E-002 1.4303E-003 1.9498 1.8440E-003 1.8806 4.6818E-003 1.8776 8.31E-003 3.6687E-004 1.9630 5.0124E-004 1.8793 1.4688E-003 1.8724