Key points are not available for this paper at this time.
Previous measurements in the moderate to small Reynolds number range of isotropic turbulence have all shown the skewness factor S - (u/ x) ³/ (u/ x) ²^3{2} of the streamwise velocity derivative to increase with decreasing Reynolds number. This ‘paradoxical’ trend was found for 150 ≥ R λ ≥ 4. New data covering the range 4 ≥ R λ ≥ 1 show a maximum S for R λ between 4 and 3 and a rapid decrease for R λ < 2.
Tavoularis et al. (Wed,) studied this question.