Fig 7.
Inertial subrange scaling exponents for velocity and scalar structure function, ζn. Longitudinal velocity component measured along the mean velocity gradient (○) and transverse to it (□). The scalar structure function exponent (◊). Both the velocity and scalar depart from the K41 prediction (Eq. 4) for higher orders, with the scalar showing a greater departure. This is consistent with its greater intermittency, Fig. 5. [Reproduced with permission from ref. 15 (Copyright 2000, Annual Reviews).]