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Publikováno v:
Physics of Fluids. 33:095112
Vorticity transport in turbulent channels under large-scale active drag control (i.e., spanwise opposed jet forcing) is investigated via direct numerical simulation of the Navier–Stokes equation. The skin-friction coefficient is newly expressed by
Autor:
Jacques Magnaudet, Fumio Takemura
Publikováno v:
Physics of Fluids. 16:3247-3255
Using an optical device and a travelling system, we determine precisely the evolution of the radius and rising speed of a single CO2 or CO2–air bubble rising at finite Reynolds number in an aqueous NaOH solution and rapidly dissolving in it. We wil
Publikováno v:
Physics of Fluids. 28:125101
In this work we report the results of DNSs and LESs of the turbulent flow through hexagonal ducts at friction Reynolds numbers based on centerplane wall shear and duct half-height Reτ,c ≃ 180, 360, and 550. The evolution of the Fanning friction fa
Publikováno v:
Physics of Fluids. 21:095105
Results of a wind tunnel experiment in which there are systematic variations of free stream turbulence above a flat-plate boundary layer are presented. Upstream of the plate, an active grid generates free stream turbulence varying in intensity from 0