时间演化分形流场的直接数值模拟

石均,邱颖宁,周毅

Direct numerical simulation of temporally evolving fractal-generated turbulence

Jun SHI,Ying-ning QIU,Yi ZHOU

图 9 FGT的瞬时涡量和第二不变量

Fig.9 Instantaneous vorticity and second invariant of velocity gradient tensor of FGT