Numerical study of double diffusive natural convective heat and mass transfer in an inclined rectangular cavity filled with porous medium

Al‐Farhany, Khaled; Turan, Ali

doi:10.1016/j.icheatmasstransfer.2011.11.014

Cited by 50 publications

(12 citation statements)

References 16 publications

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“…Chamkha and Al-Naser (2002) investigated hydromagnetic double-diffusive convection in a rectangular enclosure with uniform side heat and mass fluxes and opposing temperature and concentration gradients. Other experimental studies dealing with thermo-solutal convection in rectangular enclosures were reported by Al-Farhany and Turan (2012) and Lee and Hyun (1990) and Hyun and Lee (1990).…”

Section: Introductionmentioning

confidence: 94%

Heat and mass transfer in a porous medium filled rectangular duct with Soret and Dufour effects under inclined magnetic field

Chamkha

Mallikarjuna

Vijaya

et al. 2014

International Journal of Numerical Methods for Heat &Amp; Fluid Flow

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Purpose -The purpose of this paper is to study the effects of Soret and Dufour effects on convective heat and mass transfer flow through a porous medium in a rectangular duct in the presence of inclined magnetic field. Design/methodology/approach -Using the non-dimensional variables, the governing equations have been transformed into a set of differential equations, which are non-linear and cannot be solved analytically, therefore finite element method has been used for solving the governing equations. Findings -The influence of thermo-diffusion, diffusion thermo, radiation, dissipation, heat sources and the inclined magnetic field on all the flow, heat and mass transfer characteristics has been found to be significant. Originality/value -The problem is relatively original as it combines many effects as Soret and Dufour effects and chemical reaction under inclined magnetic field.

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Section: Introductionmentioning

confidence: 94%

Heat and mass transfer in a porous medium filled rectangular duct with Soret and Dufour effects under inclined magnetic field

Chamkha

Mallikarjuna

Vijaya

et al. 2014

International Journal of Numerical Methods for Heat &Amp; Fluid Flow

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“…It also presents a special potential to act as a heat transfer inhibitor [31]. Among researchers investigating the convection in the parallelogramic enclosures, Al-Farhany & Turan [32] performed numerical simulations to study double diffusive natural convection inside an inclined rectangular cavity filled with porous medium. Results show that there is an inverse relation between the heat transfer and inclination angle.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of MHD Mixed Convection Flow in a Parallelogramic Porous Enclosure Filled with Nano Fluid and in Presence of Magnetic Field Induction

Ghaffarpasand

Fazeli

2018

Scientia Iranica

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In the present study, the mixed convection flow of nanofluid in a lid-driven parallelogramic porous enclosure subjected to a magnetic field is investigated numerically. Induced magnetic field is also considered, in terms of the magnetic potential, in solving the magnetohydrodynamic (MHD) flow and temperature equations. The Darcy-Brinkman-Forchheimer model with the Boussinesq approximation is adopted and the finite volume method based on SIMPLE algorithm is utilized to solve the governing equations with the appropriate boundary conditions in an orthogonal computational domain. The governing equations in a non-orthogonal physical domain are transformed into a computational domain in an orthogonal co-ordinate by co-ordinate transformations. It has been shown that the flow field and heat transfer are sensible greatly to the skew angle variation. Magnetic potential circulates through the parallelogramic porous enclosure with either high either magnetic Reynolds number or magnetic permeability of the nanofluid. Results also indicate that the influence of external magnetic field on fluid characteristics and heat transfer manifests variety fashions mainly depends on the effective area of the parallelogramic enclosure. Besides, the variation in rates of heat transfer while adding nanoparticles or applying magnetic field are affected to some extent by porous medium permeability and Richardson number.

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“…Liu et al (2008) included the solute sources and Tofaneli and de Lemos (2009) considered the turbulent natural convection. Al-Farhany and Turan (2012) showed that the average Nusselt and Sherwood numbers decrease when the inclination angle of the cavity increases. Benissaad and Ouazaa (2012) used the model of Darcy and a porous medium saturated by a binary fluid.…”

Section: Introductionmentioning

confidence: 99%

Combined Solutal and Thermal Buoyancy Thermocapillary Convection in a Square Open Cavity

Alhashash¹,

Saleh²

2017

JAFM

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Combined solutal and thermal buoyancy-thermocapillary convection in a square open cavity is studied numerically in the present article. The Forchheimer-Brinkman-extended Darcy model is used in the mathematical formulation for the porous layer and the COMSOL Multiphysics software is applied to solve the dimensionless governing equations. The governing parameters considered are the thermal Marangoni number, −1000 ≤ Ma_T ≤ 1000, the Darcy number, 10−5 ≤ Da ≤ 10−2, the porosity of porous medium, 0.4 ≤ ε ≤ 0.99 and the Lewis number, 10 ≤ Le ≤ 200. It is found that the global heat and solute transfer rate decreases by reducing the counteracting surface tension force and increases by augmenting the surface tension force. The minimum values of the global heat and solute transfer rate were obtained about Ma_T = −90 for the all porosities.

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Numerical study of double diffusive natural convective heat and mass transfer in an inclined rectangular cavity filled with porous medium

Cited by 50 publications

References 16 publications

Heat and mass transfer in a porous medium filled rectangular duct with Soret and Dufour effects under inclined magnetic field

Heat and mass transfer in a porous medium filled rectangular duct with Soret and Dufour effects under inclined magnetic field

Numerical Analysis of MHD Mixed Convection Flow in a Parallelogramic Porous Enclosure Filled with Nano Fluid and in Presence of Magnetic Field Induction

Combined Solutal and Thermal Buoyancy Thermocapillary Convection in a Square Open Cavity

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