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  • Open Access

    ARTICLE

    ENTROPY GENERATION OF UNSTEADY RADIATIVE CASSON FLUID FLOW THROUGH POROUS MEDIUM OVER A PERMEABLE STRETCHING SURFACE WITH INCLINED MAGNETIC FIELD

    Shalini Jain*, Amit Parmar

    Frontiers in Heat and Mass Transfer, Vol.9, pp. 1-8, 2017, DOI:10.5098/hmt.9.40

    Abstract Present paper aims to investigate entropy generation of unsteady radiative Casson fluid flow through porous medium over a permeable stretching surface with inclined magnetic field. Time-dependent partial differential equations are transformed into non-linear ordinary differential equations using similarity transformations. These transformed equations are solved numerically by Runge–Kutta fourth-order with shooting technique. The effects of pertinent parameter such as magnetic field parameter, Casson fluid parameter, inclined angle of magnetic field parameter, Radiation parameter and Reynolds number on the velocity, temperature and entropy profiles are presented graphically. Local Nusselt and local Sherwood number are also obtained and presented in tabulated form. More >

  • Open Access

    ARTICLE

    MATHEMATICAL MODELLING OF UNSTEADY MHD DOUBLEDIFFUSIVE NATURAL CONVECTION FLOW IN A SQUARE CAVITY

    K. Venkatadria,*, S. Gouse Mohiddina , M. Suryanarayana Reddyb

    Frontiers in Heat and Mass Transfer, Vol.9, pp. 1-9, 2017, DOI:10.5098/hmt.9.33

    Abstract Two-dimensional unsteady laminar double-diffusive free convective flow of a conducting fluid in a thermally insulated square enclosure except the left wall has been numerically studied in presence of heat generation/absorption. The Marker and Cell (MAC) method is employed for solving nonlinear momentum, energy and concentration equations and the numerical MATLAB code is validated with the previous study. The computed results are depicted graphically and discussed for various values of Rayleigh number (Ra), Hartmann number (Ha), Buoyancy ratio parameter (N), Lewis number (Le) and heat absorption/generation parameter (γ). It is observed that the rate of heat and mass transfer decreases with… More >

  • Open Access

    ARTICLE

    MRT-LBM SIMULATION OF NATURAL CONVECTION IN A RAYLEIGH-BENARD CAVITY WITH LINEARLY VARYING TEMPERATURES ON THE SIDES: APPLICATION TO A MICROPOLAR FLUID

    A. El Mansouria,b, M. Hasnaouia,*, A. Amahmida , Y. Dahania , M. Alouaha , S. Hasnaouia , R. Khaoulaa , M. Ouahasa, R. Bennacerb

    Frontiers in Heat and Mass Transfer, Vol.9, pp. 1-14, 2017, DOI:10.5098/hmt.9.28

    Abstract A two-dimensional numerical simulation is conducted to study natural convection flow and heat transfer characteristics in a square cavity filled with a micropolar fluid. The lower and upper walls of the cavity are respectively subject to isothermal heating and cooling while the temperatures of both vertical sides decrease linearly in the upwards direction. The Lattice-Boltzmann Method (LBM), with the multi-relaxation time (MRT) scheme for the collision process, is used to solve the problem with the objective to assess the ability and efficiency of this numerical method to describe the micropolar fluid behavior under the effect of the imposed thermal boundary… More >

  • Open Access

    ARTICLE

    Research on Improving Teaching Quality and Optimizing Teaching Scheme Based on Deep Learning in Chinese Literature Scene

    Yali Wang*

    Journal of Quantum Computing, Vol.4, No.3, pp. 165-181, 2022, DOI:10.32604/jqc.2022.039795

    Abstract With the rapid development of society nowadays, this paper begins to study the teaching strategies of promoting students’ deep learning in the Chinese literature scene, and the attitudes and teaching quality of students and teachers when learning Chinese literature. The investigation and analysis show that: (1) For example, the relationship between literary scenes and characters in the famous literary work “Three Kingdoms” is analyzed. The complex character relationships in literature are important to literary scenes and learning. (2) It explains that the suggestions when writing Chinese literary scenes need to be pragmatic, pay attention to modern people’s livelihood, and the… More >

  • Open Access

    ARTICLE

    MHD SLIP FLOW AND HEAT TRANSFER OVER AN EXPONENTIALLY STRETCHING PERMEABLE SHEET EMBEDDED IN A POROUS MEDIUM WITH HEAT SOURCE

    P. R. Sharmaa , Sushila Choudharya,* , O. D. Makindeb

    Frontiers in Heat and Mass Transfer, Vol.9, pp. 1-7, 2017, DOI:10.5098/hmt.9.18

    Abstract Steady two dimensional laminar magnetohydrodynamic (MHD) slip flow and heat transfer of a viscous incompressible and electrically conducting fluid past over a flat exponentially non-conducting stretching porous sheet embedded in a porous medium with non uniform permeability in the presence of non uniform heat source is investigated. The governing equations of velocity and temperature distributions are solved numerically and the effects of different physical parameters are shown through graphs. The rate of shear stress and the rate of heat transfer at the sheet are derived, discussed numerically and their numerical values for various values of physical parameters are presented through… More >

  • Open Access

    ARTICLE

    STEADY-STATE TRANSPORT PHENOMENA ON INDUCED MAGNETIC FIELD MODELLING FOR NON-NEWTONIAN TANGENT HYPERBOLIC FLUID FROM AN ISOTHERMAL SPHERE WITH SORET AND DUFOUR EFFECTS

    A. Subba Raoa,*, L. Nagarajaa,b, M. Sudhakar Reddya , M. Surya Narayana Reddyb

    Frontiers in Heat and Mass Transfer, Vol.9, pp. 1-11, 2017, DOI:10.5098/hmt.9.17

    Abstract This article investigates the theoretical steady magneto hydrodynamic heat flow of incompressible non-Newtonian Tangent Hyperbolic fluid flow over a sphere with Soret and Dufour effects. The governing coupled non-linear partial differential equations are reduced to non-similarity boundary layer equations using appropriate transformation and then solved using the finite difference Keller-Box method. The effect of various flow parameters on the velocity, temperature and concentration are analyzed and presented graphically. More >

  • Open Access

    ARTICLE

    IMPACT OF THERMAL RADIATION AND CHEMICAL REACTION ON UNSTEADY 2D FLOW OF MAGNETIC-NANOFLUIDS OVER AN ELONGATED PLATE EMBEDDED WITH FERROUS NANOPARTICLES

    S.P. Samrat, C. Sulochana* , G.P. Ashwinkumar

    Frontiers in Heat and Mass Transfer, Vol.10, pp. 1-8, 2018, DOI:10.5098/hmt.10.31

    Abstract This study reports the flow, thermal and concentration attributes of magnetic-nanofluids past an elongated plate with thermal radiation and chemical reaction. The flow considered is two-dimensional and time-dependent. The pressure gradient and ohmic heating terms are neglected in this analysis. The flow governing PDEs are transformed into ODEs using appropriate conversions. Further, the set of ODEs are solved analytically using perturbation technique. The flow quantities such as velocity, thermal and concentration fields are discussed under the influence of various pertinent parameters namely volume fraction of nanoparticle, magnetic field, stretching parameter, Soret number, radiation and chemical reaction with the assistance of… More >

  • Open Access

    ARTICLE

    SORET AND DUFOUR EFFECTS ON UNSTEADY HYDROMAGNETIC DUSTY FLUID FLOW PAST AN EXPONENTIALLY ACCELERATED PLATE WITH VARIABLE VISCOSITY AND THERMAL CONDUCTIVITY

    Jadav Konch*

    Frontiers in Heat and Mass Transfer, Vol.10, pp. 1-10, 2018, DOI:10.5098/hmt.10.29

    Abstract Soret and Dufour effects on the unsteady flow of a viscous incompressible dusty fluid past an exponentially accelerated vertical plate with viscous dissipation have been considered in the presence of heat source and magnetic field. The viscosity and thermal conductivity of the fluid are assumed to be varying with respect to temperature. Saffman model of dusty fluid is considered for the investigation. The non-linear partial differential equations with prescribed boundary conditions governing the flow are discretized using Crank-Nicolson formula and the resulting finite difference equations are solved by an iterative scheme based on the Gauss-Seidel method by developing computer codes… More >

  • Open Access

    ARTICLE

    UNSTEADY MHD FREE CONVECTION JEFFERY FLUID FLOW OF RADIATING AND REACTING PAST A VERTICAL POROUS PLATE IN SLIP-FLOW REGIME WITH HEAT SOURCE

    K. Venkateswara Rajua,*, A. Parandhamaa , M.C. Rajub , K. Ramesh Babua

    Frontiers in Heat and Mass Transfer, Vol.10, pp. 1-8, 2018, DOI:10.5098/hmt.10.25

    Abstract This manuscript presents an analytical investigation on unsteady MHD free convective viscous incompressible flow of electrically conducting Jeffery fluid with heat source, past an infinite vertical porous flat plate in slip flow regime. A uniform magnetic field perpendicular to the plate is applied. The presence of thermal radiation, heat source, radiation absorption and chemical reaction are included. The effects of flow parameters and thermo physical properties on the velocity temperature and concentration fields across the boundary layer are investigated. The forms of the wall Shear stress, Nusselt number and Sherwood number are derived. The results are shown in figures and… More >

  • Open Access

    ARTICLE

    COMPUTATION OF UNSTEADY MHD MIXED CONVECTIVE HEAT AND MASS TRANSFER IN DISSIPATIVE REACTIVE MICROPOLAR FLOW CONSIDERING SORET AND DUFOUR EFFECTS

    M.D. Shamshuddina,*, A.J. Chamkhab,c, Thirupathi Thummad, M.C. Rajue

    Frontiers in Heat and Mass Transfer, Vol.10, pp. 1-15, 2018, DOI:10.5098/hmt.10.15

    Abstract In the current paper, a finite element computational solution is conducted for MHD double diffusive flow characterizing dissipative micropolar mixed convective heat and mass transfer adjacent to a vertical porous plate embedded in a saturated porous medium. The micropolar fluid is also chemically reacting, both Soret and Dufour effects and also heat absorption included. The governing partial differential equations for momentum, heat, angular momentum and species conservation are transformed into dimensionless form under the assumption of low Reynolds number with appropriate dimensionless quantities. The emerging boundary value problem is then solved numerically with an efficient computational finite element method employing… More >

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