scholarly journals Spatio-temporal linear stability of double-diffusive two-fluid channel flow

2012 ◽  
Vol 24 (5) ◽  
pp. 054103 ◽  
Author(s):  
Kirti Chandra Sahu ◽  
Rama Govindarajan
Keyword(s):  
Linear Stability ◽  
Channel Flow ◽  
Fluid Channel ◽  
Spatio Temporal ◽  
Two Fluid ◽  
Double Diffusive

Linear stability of double-diffusive two-fluid channel flow

2011 ◽  
Vol 687 ◽  
pp. 529-539 ◽  
Author(s):  
Kirti Chandra Sahu ◽  
Rama Govindarajan
Keyword(s):  
Channel Flow ◽  
High Reynolds Number ◽  
Schmidt Number ◽  
Solute Concentration ◽  
Rich Variety ◽  
Simple Geometry ◽  
Fluid Channel ◽  
High Reynolds ◽  
Two Fluid ◽  
Double Diffusive

AbstractDouble-diffusive density stratified systems are well studied and have been shown to display a rich variety of instability behaviour. However double-diffusive systems where the inhomogeneities in solute concentration are manifested in terms of stratified viscosity rather than density have been studied far less and, to the best of the authors’ knowledge, not in high-Reynolds-number shear flows. In a simple geometry, namely the two-fluid channel flow of such a system, we find a new double-diffusive mode of instability. The instability becomes stronger as the ratio of diffusivities of the two scalars increases, even in a situation where the net Schmidt number decreases. The double-diffusive mode is destabilized when the layer of viscosity stratification overlaps with the critical layer of the perturbation.

scholarly journals Double-diffusive two-fluid flow in a slippery channel: A linear stability analysis

2014 ◽  
Vol 26 (12) ◽  
pp. 127101 ◽  
Author(s):  
Sukhendu Ghosh ◽  
R. Usha ◽  
Kirti Chandra Sahu
Keyword(s):  
Fluid Flow ◽  
Stability Analysis ◽  
Linear Stability ◽  
Linear Stability Analysis ◽  
Two Fluid ◽  
Double Diffusive

On the effect of the body force on the symmetry breaking in miscible two‐fluid channel flow

2004 ◽  
Vol 21 (5) ◽  
pp. 512-528 ◽  
Author(s):  
Sungcho Kim ◽  
Jaeyong Sung ◽  
Jongwook Choi
Keyword(s):  
Symmetry Breaking ◽  
Channel Flow ◽  
Body Force ◽  
The Body ◽  
Fluid Channel ◽  
Two Fluid

Instabilities in viscosity-stratified two-fluid channel flow over an anisotropic-inhomogeneous porous bottom

2019 ◽  
Vol 31 (1) ◽  
pp. 012103 ◽  
Author(s):  
Geetanjali Chattopadhyay ◽  
Usha Ranganathan ◽  
Severine Millet
Keyword(s):  
Channel Flow ◽  
Fluid Channel ◽  
Two Fluid

scholarly journals Pressure-driven miscible two-fluid channel flow with density gradients

2009 ◽  
Vol 21 (4) ◽  
pp. 043603 ◽  
Author(s):  
K. C. Sahu ◽  
H. Ding ◽  
P. Valluri ◽  
O. K. Matar
Keyword(s):  
Channel Flow ◽  
Density Gradients ◽  
Fluid Channel ◽  
Two Fluid ◽  
Pressure Driven

Transient growth in a two-fluid channel flow under normal electric field

2009 ◽  
Vol 21 (9) ◽  
pp. 094105 ◽  
Author(s):  
Fang Li ◽  
Xie-Yuan Yin ◽  
Xie-Zhen Yin
Keyword(s):  
Electric Field ◽  
Channel Flow ◽  
Transient Growth ◽  
Normal Electric Field ◽  
Fluid Channel ◽  
Two Fluid
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