Heat and Mass Transfer for Hartmann and Dufour’s Effects on Irreversibilities at Double-Diffusive Natural Convection in a Square Cavity
Journal Title: Journal of Advanced Chemical Engineering - Year 2017, Vol 7, Issue 2
Abstract
In this paper, entropy generation of double-diffusive natural convection in a 2D dimensional enclosure with magnetic and Dufour effects has been numerically performed. Dirichlet boundary conditions for temperature and solute concentration are applied to the two vertical walls of the enclosure; wheras the two horizontal walls are adiabatic and insulated. The governing equations of continuity, momentum, energy and concentration are numerically solved by using a Control Volume Fined Elements Method, CVFEM of Patankar. The governing parameters of the problem are the thermal Grashof number (GrT), the buoyancy ratio (N), the Hartmann number (Ha), the Dufour parameter (Du) and the Prandtl number (Pr). The obtained results were presented graphically via the velocity field components, temperature and concentration distributions, entropy genertion rate behaviour and by isotherms, streamlines and isentropic lines maps. The average Nusselt and Sherwood numbers are also derived and discussed numerically. The investigated results showed that the flow field and then entropy generation are notably influenced by the considering parameters.
Authors and Affiliations
Mounir Bouabid
Keywords
Related Articles
- EP ID EP356388
- DOI 10.4172/2090-4568.1000180
- Views 74
- Downloads 0
Room Temperature Synthesis of Nanocubic CuInSe2 Thin Films
The arrested precipitation technique (APT) is used to deposit CuInSe2 thin films. The deposition of thin films is carried out at room temperature. The optical study reveals direct allowed type of transition for CuInSe2 t...
The Effect of Intermittent Limiting Anodic Current Stimulation on the Electro Activity of Anodic Biofilms
Electro active biofilms is key components of bio electrochemical systems. Anodic biofilms formed by a potentialadaptive way (i.e., operation with constant external resistance or poised anode potentials) generally lack th...
Treatment of Simulated Waste Water Containing Methyl Red by Advanced Oxidation Process
Advanced oxidation process is one of the promising technologies to eliminate the toxic pollutants, total organic contents etc. from waste water. Attempts are being made from previous few years on treatment of waste water...
Blood Wettability of Haemocompatible Carbon-based Materials
The carbon haemocompatible substrates represent an important group of biomaterials due to their possibility to be used in direct contact with the blood for long times without produce thrombus and dysfunctions of the bloo...
Comparison of Classical Nucleation Theory and Modern Theory of Phase Transition
The formation of electrochemical phase is a typical example of a first-order phase transition. An overview on old and new thermodynamic and kinetic aspects of the theoretical description of first-order phase transitions,...