Velocity distribution and hydrodynamic drag in turbulent flow

This work aims to study the vertical velocity distribution in near-wall layer of a pipe, channel, and boundary flat plate because these issues are great practical theoretical importance. Until now, engineering calculations turbulent flows have been based on empirical formulas derived last century. The theory fluid motion has not completed, hydraulic resistance remain open for further study. It is known that flow intricately linked resistance. Therefore, study’s objectives also include determining position point maximum tangential stresses comparing change with logarithmic profile. Based calculation analytical methods, we researched component stress along depth flow. Derived an expression smooth tubes. contribution viscous at different points evaluated. results were compared experimental data With decrease coefficient, shifts towards solid boundary. total stress, can conclude amount friction its influence significant. angular coefficient profile core determined.