Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : November 12, 2016 - November 13, 2016
An isolated turbulent oblique band is investigated at a low bulk Reynolds number Rem = 440 in plane channel flow with a very large numerical domain. The downstream edge of the band propagates in the streamwise and spanwise directions to quasi-periodically generates disturbances which will be left behind to decay in time. Long time integration shows that the band keeps roughly constant length in time without continuously shrinking, extending or splitting, suggesting the presence of an isolated equilibrium turbulent band.