Moderate Reynolds numbers Reynolds number 2 Turbulent flow 2 Velocity measurement 2 Basic building block 1 Boundary layers 1 Channel flow 1 Coherent state 1 Coherent structure 1 In-pipe 1 Large diameter 1 Large scale motion 1 Large-scale circulation 1 Near-wall streaks 1 Occurrence probability 1 Organisational 1 Pipe flow 1 Poisson distribution 1 Stereo image processing 1 Stereoscopic particle image velocimetry 1 Topdown 1 Turbulence 1 Turbulence simulation 1 Turbulent boundary layers 1 Turbulent channel flows 1 Turbulent pipe flow 1 Two-point 1 Wall flow 1 Wall-bounded turbulent flows 1 turbulence simulation 1