Effect of stable-density stratification on counter gradient flux of a homogeneous shear flow
type: Item
instance of: scholarly article
title: Effect of stable-density stratification on counter gradient flux of a homogeneous shear flow
zbMATH Open document ID: 1116.80009
author: Oaki Iida
author: Yasutaka Nagano
published in: International Journal of Heat and Mass Transfer
publication date: 2007-01-22T00:00:00Z
review text: The authors study the effect of stable-density stratification on heat and mass transfer in the turbulent flow regime. It clarifies the relationship of stratified effects on turbulent heat and mass transfer between homogeneous shear flow and near-wall turbulence. The numerical procedure adopted in first authors' earlier work has also been successfully used in this study. Both DNS (direct numerical simulations) and RDT (rapid distortion theory) analyses have been carried out. It has been shown that there is a close association between streamwise vortical structure and persistent counter-gradient fluxes, which show at the top and bottom of the vortex. The effect of the Richardson number has been discussed in detail. The transport mechanism of the Reynolds shear stress has also been analysed around the vertical structure.
Mathematics Subject Classification ID: 80A20
Mathematics Subject Classification ID: 76F10
Mathematics Subject Classification ID: 76F45
Mathematics Subject Classification ID: 76F65
zbMATH DE Number: 5117797
zbMATH Keywords: counter gradient flux
zbMATH Keywords: stable-density stratification
zbMATH Keywords: vortical structure
reviewed by: S. C. Rajvanshi
MaRDI profile type: Publication
full work available at URL: j.ijheatmasstransfer.2006.06.022
OpenAlex ID: W2069242166
DOI: 10.1016/J.IJHEATMASSTRANSFER.2006.06.022
description: scientific article; zbMATH DE number 5117797