Viscoelastic Effects on Free Convective Three-Dimensional Flow with Heat and Mass Transfer

Choudhury, Rita; Das, Utpal Jyoti

doi:10.5402/2012/402037

Cited by 3 publications

(3 citation statements)

References 7 publications

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“…Li [24] simulated the condensation of water vapor in the presence of NCGs in a vertical cylindrical condenser and proposed a method to address the limitations of the currently used CFD to solve the simulation of flows involving multispecies as well as gas fluids and liquids in separate channels. Choudhury et al [25] studied the unsteady hydrodynamic-free convective flow of a viscoelastic incompressible fluid past a vertical porous plate in the presence of a variable suction and provided approximate solutions on velocity and temperature fields, shear stress, and the rate of heat transfer using the perturbation technique. Based on a suitable model, CFD simulation can provide additional details on condensation, which may be more accurate, but more modeling and calculation work is also required.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study of Steam–CO2 Mixture Condensation over a Flat Plate Based on the Solubility of CO2

Jiang

et al. 2023

Applied Sciences

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In order to successfully study the condensation and separation of a steam–CO2 mixture, a boundary layer model was applied to the mixture condensation of steam and CO2 on horizontal and vertical plates. The modified condensation boundary layer model of steam and CO2, given the CO2 solubility in the condensate, was established, numerically solved, and verified with existing experimental data. Different condensation data of steam–air and steam–CO2 mixtures were compared, and the effect of CO2 solubility on the mixed gas condensation was analyzed under multiple pressure conditions (1 atm–10 MPa). The simulation data show that the presence of CO2 will deteriorate the condensation heat transfer, just like air. Given that CO2 is slightly soluble, some CO2 can pass through the gas–liquid interface to enter the condensate film and reduce the accumulated CO2 on the gas–liquid interface, which improves the condensation. However, the solubility of CO2 is only significant under high-pressure conditions, inducing its effects on condensation. A comparison of the condensation coefficients of the steam–CO2 mixture shows the lower impact of CO2 condensation on the horizontal plate compared to that on the vertical plate. For most conditions, the steam–CO2 mixture gas condensation heat transfer coefficient on the vertical plate surface is still larger than that on the horizontal plate surface, and the improvement in the condensation heat transfer coefficient caused by low CO2 solubility (2 or 10%) at 10 MPa on the vertical plate is also larger than that of the horizontal plate.

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Section: Introductionmentioning

confidence: 99%

Numerical Study of Steam–CO2 Mixture Condensation over a Flat Plate Based on the Solubility of CO2

Jiang

et al. 2023

Applied Sciences

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“…Considering the model of visco-elastic fluid, many scientists have solved problems of engineering interests viz. In the last few years, many investigations [24][25][26][27][28][29][30][31][32][33][34][35][36][37][38], have been carried out regarding the present work.…”

Section: Introductionmentioning

confidence: 99%

Variable Temperature and Concentration Impacts on Radiative Chemically Magnetohydrodynamic Viscoelastic Fluid Flow Through Porous Moving Plate

Suneetha¹,

Ibrahim²,

Reddy³

et al. 2020

MMEP

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The flow has been made by considering variable temperature and radiation effects for the magnetohydrodynamic viscoelastic fluid past a moving vertical plate in a porous medium. Chemical reaction and concentration have been taken into account. The governed mathematical statement is handled analytically by perturbation technique. The main view of this research is to investigate the effects of parameters and numbers in the problem on fluid flow, thermal boundary and concentration profiles. The velocity profile has been reduced by increasing the magnetic parameter due to the Lorentz force in the opposite direction of flow. Temperature profile is increased by rising thermal radiation and concentration distribution is decreased by enhancing the chemical reaction and Schmidt number. The Schmidt number represents the relative ease of the molecular momentum and mass transfer and it is very important in multiphase flows. The effect of increasing values of the Schmidt number is to reduce the momentum boundary layer and this leads to the thinning of the diffusion layer. Furthermore, at the end of this paper the effects of different parameters on skin friction coefficient and local Nusselt number are investigated.

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“…Ahmad and Nazar [28] studied the hydromagnetic ow and heat transfer over a bidirectional stretching surface. Choudhury and Das [29] studied the viscoelastic e ect on free convective three-dimensional ow along with the phenomenon of heat and mass transfer. Nadeem et al [30] examined the MHD three dimensional Casson uid ow past a porous linearly stretching sheet.…”

Section: Introductionmentioning

confidence: 99%

Three-Dimensional Boundary layer Flow and Heat Transfer of a Fluid Particle Suspension over a Stretching Sheet Embedded in a Porous Medium

Mallikarjuna¹,

Jayaprakash

Mishra

2019

Nonlinear Engineering

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This article presents the effect of nonlinear thermal radiation on three dimensional flow and heat transfer of fluid particle suspension over a stretching sheet. The combined effects of non-uniform source/sink and convective boundary condition are taken into consideration. The governing partial differential equations are transformed into ordinary differential equations using similarity variables, which are then solved numerically by using Runge Kutta Fehlberg-45 method with shooting technique. The influence of various parameters on velocity and temperature profiles are illustrated graphically, and discussed in detail. The results indicate that the fluid phase velocity is greater than that of the particle phase for various existing parameters.

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Viscoelastic Effects on Free Convective Three-Dimensional Flow with Heat and Mass Transfer

Cited by 3 publications

References 7 publications

Numerical Study of Steam–CO2 Mixture Condensation over a Flat Plate Based on the Solubility of CO2

Numerical Study of Steam–CO2 Mixture Condensation over a Flat Plate Based on the Solubility of CO2

Variable Temperature and Concentration Impacts on Radiative Chemically Magnetohydrodynamic Viscoelastic Fluid Flow Through Porous Moving Plate

Three-Dimensional Boundary layer Flow and Heat Transfer of a Fluid Particle Suspension over a Stretching Sheet Embedded in a Porous Medium

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