10.1371/journal.pone.0154408.g006 Shuolin Li Shuolin Li Wenxin Huai Wenxin Huai Comparison between Nikuradze’s formulae and the experimental data for the smooth and rough turbulence zones. Public Library of Science 2016 flow formulae Pipe Flow Friction factor regime friction factor pipe experiment data formula Reynolds number yields model Tao Nikuradze region 2016-05-02 08:24:59 Figure https://plos.figshare.com/articles/figure/Comparison_between_Nikuradze_s_formulae_and_the_experimental_data_for_the_smooth_and_rough_turbulence_zones_/3212722 <p>Comparison between Nikuradze’s formulae and the experimental data for the smooth and rough turbulence zones.</p>