Unstable density stratification in binary mixture
type: Item
instance of: scholarly article
title: Unstable density stratification in binary mixture
zbMATH Open document ID: 1189.76162
DOI: 10.1504/PCFD.2006.010776
published in: Progress in Computational Fluid Dynamics
publication date: 2010-06-28T00:00:00Z
review text: Summary: Three-dimensional numerical modelling of Soret driven convection in a cubic cell filled with a binary mixture of water (90\%) and isopropanol (10\%) is performed. The system is heated from above while the Soret coefficient is negative. The concentration and temperature fields are strongly coupled by Soret effect that causes concentration gradients in response to the applied temperature difference. Due to negative Soret effect the heavier liquid is accumulated on the top of the lighter one. At some moment this unstable stratification leads to appearing of motion. The transient behaviour of the velocity, temperature and concentration fields is discussed.
Mathematics Subject Classification ID: 76D50
Mathematics Subject Classification ID: 76R50
Mathematics Subject Classification ID: 76M12
Mathematics Subject Classification ID: 80A20
zbMATH DE Number: 5727193
zbMATH Keywords: Soret effect
zbMATH Keywords: buoyancy force
zbMATH Keywords: convection
zbMATH Keywords: oscillation
zbMATH Keywords: instability
zbMATH Keywords: unstable density stratification
zbMATH Keywords: binary mixtures
zbMATH Keywords: 3D modelling
zbMATH Keywords: heat transfer
zbMATH Keywords: mass transfer
author: Valentina M. Shevtsova
author: D. E. Mel'nikov
author: Jean-Claude Legros
MaRDI profile type: Publication
full work available at URL: pcfd.2006.010776
OpenAlex ID: W2103317803
description: scientific article; zbMATH DE number 5727193