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Keywords: turbulent channel flow
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Proceedings Papers

Proc. ASME. AJKFluids2019, Volume 1: Fluid Mechanics, V001T01A002, July 28–August 1, 2019
Paper No: AJKFluids2019-4855
... the vibration source whereas drag decreased at other positions. Reduction of random component of Reynolds shear stress can be ascribed to the drag reduction. Keywords: Drag reduction effect, Downstream traveling wave, Turbulent channel flow, PIV measurement NOMENCLATURE p/ x pressure gradient, Pa/m RD drag...
Proceedings Papers

Proc. ASME. AJKFluids2019, Volume 1: Fluid Mechanics, V001T01A072, July 28–August 1, 2019
Paper No: AJKFluids2019-5149
... the wall. The turbulent kinetic energies of large-scale flow and fine- scale eddies are attenuated by heavier particles. Different wave- number scaled structures were generated and disappeared as a laminarization process. Keywords: DNS, subcritical transition, turbulent channel flow, turbulent stripe...
Proceedings Papers

Proc. ASME. FEDSM2007, Volume 1: Symposia, Parts A and B, 1283-1290, July 30–August 2, 2007
Paper No: FEDSM2007-37076
... of direct numerical simulation (DNS) of the turbulent channel flow at the Reynolds number of 300, based on the friction velocity and channel half width, in order to achieve this objective. The basic equations of the DNS are the Navier-Stokes and continuity equations for incompressible flows. The GS and SGS...