Eighth International Symposium on Turbulence and Shear Flow Phenomena
DOI: 10.1615/TSFP8
RELAMINARIZATION MECHANISM IN TURBULENTCHANNEL FLOW BY STREAMWISE TRAVELING WAVE-LIKE BLOWING AND SUCTION
pages 1-4
DOI: 10.1615/TSFP8.1520
要約
Direct numerical simulation of fully developed channel flow under controlled by traveling wave-like blowing and suction is presented. Similar to a result in traveling wave-like wall deformation, a transition from a turbulent flow into a laminar flow due to downstream traveling wave is found. According to the visualization of the flow field, the negative Reynolds shear stress appears (it is ordinary positive) and develops with time advance, then a turbulent fluctuation disappears.