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Hartmann number

About: Hartmann number is a research topic. Over the lifetime, 2593 publications have been published within this topic receiving 61342 citations.


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Journal ArticleDOI
TL;DR: In this paper, double stratification on stagnation point flow of Walter's B nanoliquid driven through Riga surface is examined in the current study, where the influence of Brownian and thermophoresis particle deposition is included in transport equations involved in the analysis.
Abstract: Features of double stratification on stagnation point flow of Walter's B nanoliquid driven through Riga surface are examined in the current study. Via solutal stratification, radiation and thermal effects, heat and mass phenomena are evaluated. The novelty of the proposed investigation is focused on the important effect of melting phenomenon and EMHD Lorentz force along with stratification and heat generation over the rheology of the liquid flow. The influence of Brownian and thermophoresis particle deposition is included in transport equations involved in the analysis. Transformation is incorporated by the basic laws of mass, energy and linear momentum to acquire nonlinear differential system of equations. Utilizing Optimal Homotopy Analysis Method through BVPh2.0.0, optimum value of convergence control factors is estimated. Graphical findings for the dimensionless temperature, velocity and concentration for different pertinent parameters are explained. Numerical values of physical interest like skin friction coefficient, local Sherwood number and local Nusselt number are computed and visualized graphically. The heat generation and advanced modified Hartmann number improve the speed of flow. It is also observed that weaker thermal stratification upraises the rate of heat transport, and mass transport rate lessens for stronger mass stratification. In addition, contour graphs of velocity for ratio parameter A describe the accurate perception of flow. The intensity of temperature and concentration field is low owing to double stratification, whereas the stronger radiation corresponds the significantly rise in temperature. Reliability of outcomes assured by means of probable error analysis.

88 citations

Journal ArticleDOI
TL;DR: In this article, a complete structure of corrugated surface is established for heat transfer effects in the presence of uniform magnetic field, where a natural convection phenomenon is presented for MHD flow filled in a porous corrugation cavity at various wavelengths and partially heated domain.

88 citations

Journal ArticleDOI
TL;DR: In this paper, the authors focused on steady, laminar, coupled heat and mass transfer by natural convective boundary layer flow over a permeable isothermal truncated cone in the presence of magnetic field and radiation effects.
Abstract: This work is focused on steady, laminar, coupled heat and mass transfer by natural convective boundary layer flow over a permeable isothermal truncated cone in the presence of magnetic field and radiation effects. A suitable set of dimensionless variables is used and nonsimilar equations governing the problem are obtained. The resulting equations have the property that they reduce to various special cases previously considered in the literature. An adequate implicit, tridiagonal finite difference scheme is employed for the numerical solution of the obtained equations. Various comparisons with previously published work are performed and the results are found to be in excellent agreement. Representative results for the velocity, temperature, and concentration profiles as well as the local skin-friction coefficient; local Nusselt number and the local Sherwood number illustrating the influence of the Hartmann number; the concentration to thermal buoyancy ratio; and the wall mass transfer coefficient are prese...

88 citations

Journal ArticleDOI
TL;DR: In this paper, the boundary layer flow of nanofluid that is electrically conducting over a Riga plate is considered and the numerical solution of the problem is presented using the shooting method.
Abstract: The boundary layer flow of nanofluid that is electrically conducting over a Riga plate is considered. The Riga plate is an electromagnetic actuator which comprises a spanwise adjusted cluster of substituting terminal and lasting magnets mounted on a plane surface. The numerical model fuses the Brownian motion and the thermophoresis impacts because of the nanofluid and the Grinberg term for the wall parallel Lorentz force due to the Riga plate in the presence of slip effects. The numerical solution of the problem is presented using the shooting method. The novelties of all the physical parameters such as modified Hartmann number, Richardson number, nanoparticle concentration flux parameter, Prandtl number, Lewis number, thermophoresis parameter, Brownian motion parameter and slip parameter are demonstrated graphically. Numerical values of reduced Nusselt number, Sherwood number are discussed in detail.

87 citations

Journal ArticleDOI
TL;DR: In this article, two-phase MHD flow and heat transfer in an inclined channel is investigated in which one phase being electrically conducting is assumed constant and the resulting governing equations are coupled and nonlinear.

87 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023122
2022234
2021236
2020219
2019231
2018176