Mixing at large Schmidt number in the self-similar far field of turbulent jets

Mixing at large Schmidt number in the self-similar far field of turbulent jets

We present results from an experimental investigation of turbulent transport and molecular mixing of a Sc S 1 conserved scalar in the fully developed self-similar far field of a steady, axisymmetric, momentum-driven, free turbulent jet issuing into a quiescent medium. Our experiments cover the axial range from the jet exit to 350 diameters downstream, and span the range of Reynolds numbers from...

On filtering in the viscous-convective subrange for turbulent mixing of high Schmidt number passive scalars

The Self - Similar Turbulent Dynamo

We consider the problem of magnetic-energy amplification by a turbulent flow of conducting fluid. This effect is known as the small-scale turbulent dynamo, and it is believed to be relevant in application to magnetic fields in astrophysical objects. It is, in fact, a generic property of random (in time and/or space) flows that they can amplify magnetic fluctuations at scales smaller than the sc...

Self-similar Intermediate Structures in Turbulent Boundary Layers at Large Reynolds Numbers

Processing the data from a large variety of zero-pressure-gradient boundary layer flows shows that the Reynolds-number-dependent scaling law, which the present authors obtained earlier for pipes, gives an accurate description of the velocity distribution in a selfsimilar intermediate region of distances from the wall adjacent to the viscous sublayer. The appropriate length scale that enters the...

effect of sub-grid scales on large eddy simulation of particle deposition in a turbulent channel flow

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