To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie S3. Dynamics of coherent structures in case S5R8 over the region 0≤z/R≤75. The vortex structures are visualized using isosurfaces of swirling strength colored with local axial velocity. Red color corresponds to uz>1.3V. Osborne Reynolds pipe flow: Direct simulation from laminar through gradual transition to fully developed turbulence Xiaohua Wu, Parviz Moin, Ronald J. Adrian, and Jon R. Baltzer PNAS. 2015. DOI: 10.1073/pnas.1509451112 Download Original Video Browse All Videos »