FLOW AND HEAT TRANSFER ON BODIES IN CROSSFLOW WITH SURFACE MASS TRANSFER

2019 ◽  
Author(s):  
Eph M. Sparrow ◽  
K.E. Torrance ◽  
L.Y. Hung
Keyword(s):  
Heat Transfer ◽  
Mass Transfer ◽  
Surface Mass ◽  
Surface Mass Transfer ◽  
Flow And Heat Transfer

scholarly journals Boundary layer flow and heat transfer over a permeable shrinking cylinder with surface mass transfer

2013 ◽  
Vol 18 (4) ◽  
pp. 1003-1012 ◽  
Author(s):  
K. Bhattacharyya ◽  
R.S.R. Gorla
Keyword(s):  
Heat Transfer ◽  
Boundary Layer ◽  
Mass Transfer ◽  
Differential Equations ◽  
Boundary Layer Flow ◽  
Surface Mass ◽  
Surface Mass Transfer ◽  
Flow And Heat Transfer ◽  
Curvature Parameter ◽  
Layer Flow

Abstract In the present paper, the axisymmetric boundary layer flow and heat transfer past a permeable shrinking cylinder subject to surface mass transfer is studied. The similarity transformations are adopted to convert the governing partial differential equations for the flow and heat transfer into the nonlinear self-similar ordinary differential equations and then solved by a finite difference method using the quasilinearization technique. From the current investigation, it is found that the velocity in the boundary layer region decreases with the curvature parameter and increases with suction mass transfer. Moreover, with the increase of the curvature parameter, the suction parameter and Prandtl number, the heat transfer is enhanced.

Effects of Surface Mass Transfer on Free Convection Flow Over Vertical Cylinder Embedded in a Saturated Porous Medium

1985 ◽  
Vol 107 (3) ◽  
pp. 394-396 ◽  
Author(s):  
M.-J. Huang ◽  
C.-K. Chen
Keyword(s):  
Heat Transfer ◽  
Mass Transfer ◽  
Porous Medium ◽  
Heat Transfer Coefficient ◽  
Free Convection ◽  
Saturated Porous Medium ◽  
Vertical Cylinder ◽  
Surface Mass ◽  
Surface Mass Transfer ◽  
The Heat Transfer Coefficient

The heat-transfer characteristics for free convection associated with isothermal vertical cylinder with surface mass transfer (blowing or suction) embedded in a saturated porous medium are analyzed. The nonsimilar equations are solved by using a suitable variable transformation and employing an implicit finite difference method. The numerical results for Nusselt number are expressed as functions of the parameters, ξ and γ, which represent the effects of the cylinder curvature and the surface mass transfer, respectively. It is found that the local Nusselt numbers for a vertical cylinder are less sensitive to the surface mass transfer than those for a vertical plate. Blowing of mass decreases the heat transfer coefficient but the suction of mass increases the heat transfer coefficient.

Heat transfer in wall jet flows with vectored surface mass transfer

AIAA Journal ◽  
1977 ◽  
Vol 15 (10) ◽  
pp. 1514-1516 ◽  
Author(s):  
Rama Subba Reddy Gorla
Keyword(s):  
Heat Transfer ◽  
Mass Transfer ◽  
Jet Flows ◽  
Wall Jet ◽  
Surface Mass ◽  
Surface Mass Transfer

scholarly journals Numerical Solution of Natural Convection on a Vertical Stretching Surface with Suction and Blowing

2021 ◽  
Vol 39 (5) ◽  
pp. 1469-1474
Author(s):  
Shankar Goud Bejawada ◽  
Yanala Dharmendar Reddy ◽  
Kanti Sandeep Kumar ◽  
Epuri Ranjith Kumar
Keyword(s):  
Heat Transfer ◽  
Mass Transfer ◽  
Three Dimensions ◽  
Surface Mass ◽  
Transfer Rates ◽  
Nusselt Numbers ◽  
Surface Mass Transfer ◽  
Prandtl Numbers ◽  
Primary Focus ◽  
Energy And Momentum

In this paper, the natural convective heat transfer from a stretching sheet oriented vertically involving surface mass transfer is of primary focus. A similarity solution in three dimensions is described for energy and momentum. The transformed equations are answered by using MATLAB in-built numerical programmer solver bvp4c. For a range of Prandtl numbers and surface mass transfer rates, friction factor and Nusselt numbers are tabulated. The heat transfer mechanism is observed to influence surface mass transfer. Heat transfer rate increases and thermal boundary layer thickness decreases with an increase of Prandtl values. In addition, the current results are compared with the previously published results and initiate to be a successful agreement.In this paper, the natural convective heat transfer from a stretching sheet oriented vertically involving surface mass transfer is of primary focus. A similarity solution in three dimensions is described for energy and momentum. The transformed equations are answered by using MATLAB in-built numerical programmer solver bvp4c. For a range of Prandtl numbers and surface mass transfer rates, friction factor and Nusselt numbers are tabulated. The heat transfer mechanism is observed to influence surface mass transfer. Heat transfer rate increases and thermal boundary layer thickness decreases with an increase of Prandtl values. In addition, the current results are compared with the previously published results and initiate to be a successful agreement.

Effects of injection (suction) on a steady mixed convection boundary layer flow over a vertical cone

2009 ◽  
Vol 19 (3/4) ◽  
pp. 432-444 ◽  
Author(s):  
R. Ravindran ◽  
Satyajit Roy ◽  
E. Momoniat
Keyword(s):  
Heat Transfer ◽  
Mass Transfer ◽  
Mixed Convection ◽  
Thermal Design ◽  
Convection Flow ◽  
Convection Boundary Layer ◽  
Vertical Cone ◽  
Content Type ◽  
Surface Mass ◽  
Surface Mass Transfer

PurposeThe purpose of this paper is to study the steady mixed convection flow over a vertical cone in the presence of surface mass transfer when the axis of the cone is inline with the flow.Design/methodology/approachIn this case, the numerical difficulties to obtain the non‐similar solution are overcome by applying an implicit finite difference scheme in combination with the quasilinearization technique.FindingsNumerical results are reported here to display the effects of Prandtl number, buoyancy and mass transfer (injection and suction) parameters at different stream‐wise locations on velocity and temperature profiles, and on skin friction and heat transfer coefficients.Research limitations/implicationsThermo‐physical properties of the fluid in the flow model are assumed to be constant except the density variations causing a body force term in the momentum equation. The Boussinesq approximation is invoked for the fluid properties to relate the density changes to temperature changes and to couple in this way the temperature field to the flow field.Practical implicationsConvective heat transfer over a stationary cone is important for the thermal design of various types of industrial equipments such as heat exchangers, conisters for nuclear waste disposal, nuclear reactor cooling systems and geothermal reservoirs, etc.Originality/valueThe combined effects of thermal diffusion and surface mass transfer on a vertical cone has been studied.

scholarly journals Effect of Fluctuating Surface Heat and Mass Flux on Natural Convection Flow along a Vertical Flat Plate

2015 ◽  
Vol 2015 ◽  
pp. 1-15 ◽  
Author(s):  
Sharmina Hussain ◽  
Nepal C. Roy ◽  
Md. Anwar Hossain ◽  
Suvash C. Saha
Keyword(s):  
Mass Transfer ◽  
Mass Flux ◽  
Surface Heat ◽  
Asymptotic Solutions ◽  
Convection Flow ◽  
Surface Mass ◽  
Coupled Equations ◽  
Surface Mass Transfer ◽  
Stress Surface ◽  
Layer Flow

An investigation has been carried on double diffusive effect on boundary layer flow due to small amplitude oscillation in surface heat and mass flux. Extensive parametric simulations were performed in order to elucidate the effects of some important parameters, that is, Prandtl number, Schmidt number, and Buoyancy ratio parameter on flow field in conjunction with heat and mass transfer. Asymptotic solutions for low and high frequencies are obtained for the conveniently transformed governing coupled equations. Solutions are also obtained for wide ranged value of the frequency parameters. Comparisons between the asymptotic and wide ranged values are made in terms of the amplitudes and phases of the shear stress, surface heat transfer, and surface mass transfer. It has been found that the amplitudes and phase angles obtained from asymptotic solutions are found in good agreement with the finite difference solutions obtained for wide ranged value of the frequency parameter.

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