Anisotropic Characteristics of Turbulence Dissipation in Swirling Flow: A Direct Numerical Simulation Study

Figure 6

Locations of anisotropic turbulence dissipation ( > 100) for (a) and (c) and locations of nearly isotropic turbulence dissipation (, , or 0.158 < , , < 2.5) for (b) and (d), respectively, in the background of vorticities.

(a)

(b)

(c)

(d)