𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Heat and mass transfer for Soret and Dufour’s effect on mixed convection boundary layer flow over a stretching vertical surface in a porous medium filled with a viscoelastic fluid

✍ Scribed by T. Hayat; M. Mustafa; I. Pop

Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
915 KB
Volume
15
Category
Article
ISSN
1007-5704

No coin nor oath required. For personal study only.

✦ Synopsis

A mathematical model is analyzed in order to study the heat and mass transfer characteristics in mixed convection boundary layer flow about a linearly stretching vertical surface in a porous medium filled with a viscoelastic fluid, by taking into account the diffusionthermo (Dufour) and thermal-diffusion (Soret) effects. The governing partial differential equations are transformed into a set of coupled ordinary differential equations, which are solved analytically using the homotopy analysis method (HAM) to determine the convergent series expressions of velocity, temperature and concentration. The physical interpretation to these expressions is assigned through graphs and a table for the wall shear stress f 00 ð0Þ, Nusselt number Àh 0 ð0Þ and Sherwood number À/ 0 ð0Þ. Results showed that the fields were influenced appreciably by the effects of the governing parameters: mixed convection parameter k, Lewis number Le, Prandtl number Pr, viscoelastic parameter K, concentration buoyancy parameter N, porosity parameter c, Dufour number D f and Soret number Sr. It was evident that for some kind of mixtures such as the light and medium molecular weight, the Soret and Dufour's effects should be considered as well.

📜 SIMILAR VOLUMES

Heat and mass transfer for Soret and Duf
Heat and mass transfer for Soret and Dufour’s effects on Hiemenz flow through porous medium onto a stretching surface
✍ R. Tsai; J.S. Huang 📂 Article 📅 2009 🏛 Elsevier Science 🌐 English ⚖ 420 KB

A theoretical study of the steady stagnation point flow over a flat stretching surface in the presence of species concentration and mass diffusion under Soret and Dufour's effects has been obtained by solving the governing equations of continuity, momentum, energy and concentration using similarity

Thermal-diffusion and diffusion-thermo e
Thermal-diffusion and diffusion-thermo effects on convective heat and mass transfer in a visco-elastic fluid flow through a porous medium over a stretching sheet
✍ Salem, A. M. 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 253 KB 👁 2 views

## Abstract An analysis has been carried out to obtain the thermal‐diffusion and diffusion‐thermo effects on the mixed free forced convective and mass transfer in a visco‐elastic fluid flow through a porous medium over a stretching sheet. Here, the driving force for the flow is provided by an imper

Combined heat and mass transfer in natur
Combined heat and mass transfer in natural convection flow from a vertical wavy surface in a power-law fluid saturated porous medium with thermal and mass stratification
✍ Ching-Yang Cheng 📂 Article 📅 2009 🏛 Elsevier Science 🌐 English ⚖ 792 KB

This work studies the coupled heat and mass transfer by natural convection near a vertical wavy surface in a non-Newtonian fluid saturated porous medium with thermal and mass stratification. The surface of the vertical wavy plate is kept at constant wall temperature and concentration. A coordinate t