“…Much progress has been made to the mathematical theory of relativistic fluid dynamics, yet mainly for one-dimensional system or spherically symmetric three-dimensional system (see [2][3][4][5][6][7]9,11,[15][16][17][18][19][20]22,27,28,34,37,44,45] and references cited therein). For multi-dimensional cases, local existence results of smooth solutions were obtained in [24,25], the singularity formation of smooth solutions was studied in [12,26,30].…”