Abstract
In the present study, the onset of thermo-solutal convection in a liquid layer overlaying a porous layer where the system is being laterally heated is investigated. The non-linear two-dimensional Navier-Stokes equations, the energy equation, the mass balance equation and the continuity equation are solved for the liquid layer and the Brinkman model is used for the porous layer. The partial differential equations are solved numerically using the finite element technique. Two different cases are analyzed in this study. In the case of the thermo-solutal convection without thermodiffusion or Soret effect, multi-convective cells appear in the liquid layer and as the thickness of the liquid layer decreases (i. e. higher thickness ratio), the flow covers the entire cavity. In the presence of Soret effect, it has been found that the isopropanol component goes either towards the hot or cold walls depending on the Soret sign.
| Original language | English |
|---|---|
| Pages (from-to) | 237-250 |
| Number of pages | 14 |
| Journal | International Journal of Fluid Mechanics Research |
| Volume | 37 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2010 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Mechanical Engineering
- Physics and Astronomy(all)
Cite this
Thermo-Solutal convection in water isopropanol mixtures in the presence of soret effect. / Saghir, M. Ziad; Rahaman, Azizur.
In: International Journal of Fluid Mechanics Research, Vol. 37, No. 3, 2010, p. 237-250.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Thermo-Solutal convection in water isopropanol mixtures in the presence of soret effect
AU - Saghir, M. Ziad
AU - Rahaman, Azizur
PY - 2010
Y1 - 2010
N2 - In the present study, the onset of thermo-solutal convection in a liquid layer overlaying a porous layer where the system is being laterally heated is investigated. The non-linear two-dimensional Navier-Stokes equations, the energy equation, the mass balance equation and the continuity equation are solved for the liquid layer and the Brinkman model is used for the porous layer. The partial differential equations are solved numerically using the finite element technique. Two different cases are analyzed in this study. In the case of the thermo-solutal convection without thermodiffusion or Soret effect, multi-convective cells appear in the liquid layer and as the thickness of the liquid layer decreases (i. e. higher thickness ratio), the flow covers the entire cavity. In the presence of Soret effect, it has been found that the isopropanol component goes either towards the hot or cold walls depending on the Soret sign.
AB - In the present study, the onset of thermo-solutal convection in a liquid layer overlaying a porous layer where the system is being laterally heated is investigated. The non-linear two-dimensional Navier-Stokes equations, the energy equation, the mass balance equation and the continuity equation are solved for the liquid layer and the Brinkman model is used for the porous layer. The partial differential equations are solved numerically using the finite element technique. Two different cases are analyzed in this study. In the case of the thermo-solutal convection without thermodiffusion or Soret effect, multi-convective cells appear in the liquid layer and as the thickness of the liquid layer decreases (i. e. higher thickness ratio), the flow covers the entire cavity. In the presence of Soret effect, it has been found that the isopropanol component goes either towards the hot or cold walls depending on the Soret sign.
UR - http://www.scopus.com/inward/record.url?scp=77952898490&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77952898490&partnerID=8YFLogxK
U2 - 10.1615/InterJFluidMechRes.v37.i3.30
DO - 10.1615/InterJFluidMechRes.v37.i3.30
M3 - Article
VL - 37
SP - 237
EP - 250
JO - Fluid Mechanics Research
JF - Fluid Mechanics Research
SN - 1064-2277
IS - 3
ER -