Turbulent flow in pipes and channels as cross-stream “inverse cascades” of vorticity
نویسندگان
چکیده
منابع مشابه
Turbulent Flow in Pipes and Channels as Cross-Stream “Inverse Cascades” of Vorticity
A commonplace view of pressure-driven turbulence in pipes and channels is as “cascades” of streamwise momentum toward the viscous layer at the wall. We present in this paper an alternative picture of these flows as “inverse cascades” of spanwise vorticity, in the cross-stream direction but away from the viscous sublayer. We show that there is a constant spatial flux of spanwise vorticity, due t...
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ژورنال
عنوان ژورنال: Physics of Fluids
سال: 2008
ISSN: 1070-6631,1089-7666
DOI: 10.1063/1.3013635