H. Mouri, T. Morinaga, T. Yagi, K. Mori
Published 2017-11-16Version 1
Within wall turbulence, there is a sublayer where the mean velocity and the variance of velocity fluctuations vary logarithmically with the height from the wall. This logarithmic scaling is also known for the mean concentration of a passive scalar. By using heat as such a scalar in a laboratory experiment of a turbulent boundary layer, the existence of the logarithmic scaling is shown here for the variance of fluctuations of the scalar concentration. It is reproduced by a model of energy-containing eddies that are attached to the wall.
Comments: 7 pages, to appear in Physical Review E
Large-scale motions from a direct numerical simulation of a turbulent boundary layer
High-flexibility reconstruction of small-scale motions in wall turbulence using a generalized zero-shot learning
Modal decomposition of nonlinear interactions in wall turbulence
![QR code for arXiv:1711.06005 [physics.flu-dyn]](http://oss.arxitics.com/images/favicon.svg)