On the motion of two-phase systems in a porous medium taking account of heat- and mass-transport processes

1970 ◽  
Vol 18 (6) ◽  
pp. 702-706
Author(s):  
A. Kh. Mirzadzhanzade
Keyword(s):  
Porous Medium ◽  
Mass Transport ◽  
Transport Processes ◽  
Two Phase ◽  
Heat And Mass Transport ◽  
Phase Systems

Numerical Solutions of Natural Convection Flow of a Dusty Nanofluid About a Vertical Wavy Truncated Cone

2016 ◽  
Vol 139 (2) ◽  
Author(s):  
Sadia Siddiqa ◽  
Naheed Begum ◽  
M. A. Hossain ◽  
Rama Subba Reddy Gorla
Keyword(s):  
Natural Convection ◽  
Mass Transport ◽  
Numerical Solutions ◽  
Convection Flow ◽  
Governing Equations ◽  
Natural Convection Flow ◽  
Two Phase ◽  
Heat And Mass Transport ◽  
Implicit Finite Difference ◽  
Control Skin

This paper reports the numerical results for the natural convection flow of a two-phase dusty nanofluid along a vertical wavy frustum of a cone. The general governing equations are transformed into parabolic partial differential equations, which are then solved numerically with the help of implicit finite difference method. Comprehensive flow formations of carrier and dusty phases are given with the aim to predict the behavior of heat and mass transport across the heated wavy frustum of a cone. The effectiveness of utilizing the nanofluids to control skin friction and heat and mass transport is analyzed. The results clearly show that the shape of the waviness changes when nanofluid is considered. It is shown that the modified diffusivity ratio parameter, NA, extensively promotes rate of mass transfer near the vicinity of the cone, whereas heat transfer rate reduces.

Modeling of Heat and Mass Transport in Two-Phase Media by Considering Liquid Pressure

2004 ◽  
Vol 22 (1-2) ◽  
pp. 81-90 ◽  
Author(s):  
André L. S. C. Sarmento ◽  
Frédéric Couture ◽  
Stéphane Laurent ◽  
Michel A. Roques
Keyword(s):  
Mass Transport ◽  
Liquid Pressure ◽  
Two Phase ◽  
Heat And Mass Transport

scholarly journals Squeezing flow of convectively heated fluid in porous medium with binary chemical reaction and activation energy

2019 ◽  
Vol 11 (10) ◽  
pp. 168781401988377 ◽  
Author(s):  
Shakeel Ahmad ◽  
Muhammad Farooq ◽  
Aisha Anjum ◽  
Nazir Ahmad Mir
Keyword(s):  
Activation Energy ◽  
Porous Medium ◽  
Mass Transport ◽  
Chemical Reaction ◽  
Squeezing Flow ◽  
Fluid Temperature ◽  
Heat And Mass Transport ◽  
Non Linear ◽  
Fluid Concentration ◽  
Non Linear System

In this communication, attention is paid to analyze theoretically the influence of the temperature-dependent binary chemical reaction for hydro-magnetic viscous fluid flow, flowing through the porous medium due to the squeezing phenomenon. For better understanding of variations in the processes of convective heat and mass transport, Arrhenius activation energy is also accounted. The equations governing the flow, heat, and mass are altered into non-linear differential system (ordinary differential equation) by means of suitable conversion methods. Efficient convergent technique is employed to compute resulting non-linear system. The solutions thus acquired are utilized to interrogate the behavior of the physical operating variables on flow velocity, fluid temperature, and fluid concentration. Coefficient of skin friction and rate of heat and mass transport are graphically elaborated. From the graphs, it is concluded that the temperature of fluid dominates against activation energy parameter [Formula: see text] and reaction parameter [Formula: see text]. However, an opposite trend is noted for concentration field. Moreover, temperature field and fluid concentration are incremented for dominant thermal and solutal Biot numbers, respectively. This analysis has the industrial processes which include engine cooling system, polymer industry, lubrication mechanisms, design of cooling and heating systems, molding of plastic sheets, designing porous surfaces to decrease drag, optimizing oil/gas production, in the domain of engineering (i.e. chemical, biomedical, geothermal etc.), chemical or nuclear system, cooling process in nuclear reaction, biochemical process, bimolecular reaction, and polymeric flows which is electrically conducted can be restrained and managed by exploiting the magnetic field. Encouraged by such physical situations, the proposed analysis is accomplished.

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