Chemical reaction, soret and dufour effects on MHD mixed convection stagnation point flow with radiation and slip condition

Niranjan, H.; Sivasankaran, S.; Bhuvaneswari, M.

doi:10.24200/sci.2017.4054

Cited by 31 publications

(17 citation statements)

References 21 publications

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“…The wedge surface is presumed to be permeable so as to permit for possible wall suction, 0 . The thermal-di usion (Soret) and di usion-thermo (Dufour) e ects are considered in this study [12,13,33]. Thus, in accordance with these assumptions and by employing the usual boundary layer approximations, Figure 1.…”

Section: Mathematical Formulationmentioning

confidence: 99%

“…Dufour or di usion-thermal e ect is the contribution to the thermal energy ux due to concentration gradients. From another point of view, mass uxes can be generated by temperature gradients referred to as Soret or thermo-di usion e ect [12][13][14]. It is well known that thermal radiation alters the temperature distribution by playing a role including controlling energy transport process, polymer processing, and nuclear reactor cooling system [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

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Soret and Dufour effects on doubly diffusive convection of nanofluid over a wedge in the presence of thermal radiation and suction

et al. 2018

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This paper investigates the e ects of thermal radiation, Dufour, and Soret e ects on doubly di usive convective heat transfer of nanoliquid over a wedge in the presence of wall suction. The governing equations are transformed to nonlinear ordinary di erential equations using similarity transformation. The resulting system is solved numerically by the fourth-order Runge-Kutta-Gill method with a shooting technique and a Newton-Raphson method. The solutions are expressed in terms of velocity, temperature, solutal concentration, and volume fraction pro les. The e ects of pertinent parameters involved in the problem such as wedge angle, thermal radiation, Brownian motion, thermophoresis, Soret number, and Dufour number on the skin friction coe cient, local Nusselt number, and local Sherwood number are discussed in detail.

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Section: Mathematical Formulationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Soret and Dufour effects on doubly diffusive convection of nanofluid over a wedge in the presence of thermal radiation and suction

et al. 2018

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“…(5), A 1 = (gradV) + (gradV) T is the rst Rivilin-Ericksen tensor. The general form of modi ed Fourier and Fick's laws is considered in [15], as written in the following: q+ E @q @t + V rq q rV + (r V)q = k (T ) rT; (6) J+ C @J @t…”

Section: Mathematical Formulationmentioning

confidence: 99%

“…Khan [5] examined a series solution of visco-elastic uid ow over the shrinking/stretching surface with magnetic eld e ect. Furthermore, many researchers [6][7][8] focused their attention on such types of work to ll the gap.…”

Section: Introductionmentioning

confidence: 99%

Non-Fourier's and Fick's laws applications in the flow of temperature dependent thermal conductivity generalized Newtonian liquids: A 3D computational study

Ahmad

2018

Scientia Iranica

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KEYWORDS 3D Sisko liquid;Generalized heat ux and mass di usion relations; Temperaturedependent thermal conductivity.Abstract. The current article presents a numerical study for local solutions of Sisko liquid ow by a bidirectional stretched surface. In addition, the analysis of relaxation times for the heat and mass transfer mechanisms is conducted by utilizing modi ed heat ux and mass di usion models. These improved relations are the generalized form of Fourier and Fick's laws in which the time-space upper-convected derivative is employed to portray the heat conduction and mass di usion mechanisms. Appropriate transformations lead to a strongly nonlinear di erential system of equations that are then solved numerically by employing the applications of bvp4c package in Matlab software. Another numerical method, namely shooting technique, with RK45 Fehlberg and Newton-Raphson method is utilized to authenticate the results. Graphical illustrations demonstrating the impacts of sundry physical parameters with required discussion highlighting their physical e ects are also a part of this exploration. It is perceived that the temperature and concentration of Sisko liquid are the diminishing functions of relaxation times for the heat and mass transfer mechanisms. It is also fascinating to note that the temperature and concentration of Sisko liquid are higher in the classical form than that in the improved constitutive relation.

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“…To control the fluid flows, mixing of samples, heat transfer rate and biological transportation applied magnetic field is used. Many authors proved an extensive analysis regarding flow of various fluids models in presence of applied magnetic field [8][9][10][11][12][13][14][15][16][17][18].…”

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confidence: 99%

Analysis of Second-Grade Fluid Flow in Porous Channel With Cattaneo-Christov and Generalized Fick’s Theories

et al. 2019

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This attempt executes the combined heat mass transport features in steady MHD viscoelastic fluid flow through stretching walls of channel. The channel walls are considered to be porous. The analysis of heat transport is made by help Cattaneo-Christov heat diffusion formula while generalized Fick's theory is developed for study of mass transport. The system of partial differential expressions is changed into set of ordinary differential by introducing suitable variables. The homotopic scheme is introduced for solving the resultant equations and then validity of results are verified by various graphs. An extensive analysis has been performed for the influence of involved constraints on liquid velocity, concentration and temperature profiles. It is noted that the normal component of velocity decreases by increasing Reynolds number while retards for increasing viscoelastic constraint. Both temperature and concentration profiles enhanced by increasing combined parameter and Reynolds number. The presence of thermal relaxation number and concentration relaxation number declines both temperature and concentration profiles, respectively.

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Chemical reaction, soret and dufour effects on MHD mixed convection stagnation point flow with radiation and slip condition

Cited by 31 publications

References 21 publications

Soret and Dufour effects on doubly diffusive convection of nanofluid over a wedge in the presence of thermal radiation and suction

Soret and Dufour effects on doubly diffusive convection of nanofluid over a wedge in the presence of thermal radiation and suction

Non-Fourier's and Fick's laws applications in the flow of temperature dependent thermal conductivity generalized Newtonian liquids: A 3D computational study

Analysis of Second-Grade Fluid Flow in Porous Channel With Cattaneo-Christov and Generalized Fick’s Theories

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