Analysis of the influence of transverse groove structure on the flow of a flat-plate surface based on Liutex parameters

Research on turbulent drag reduction has been limited owing to the limitations of existing parameters used for identification vortex structures. As a new and more suitable parameter, Liutex provides novel research method turbulence control. We channel with transverse groove structure as model employed large-eddy simulation based study influence mechanism watershed. The analysis revealed that significantly inhibited intensity, this effect diminished increase normal height. Moreover, could maintain stability flow restrain hairpin vortex. fundamental action pertained slip condition bottom surface along direction, which was essential conveying fluid. Furthermore, reduce overall in intensity transition layer, fluctuation logarithmic layer lower under structure. This case can guide application reduction.