Topic
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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TL;DR: In this paper, the steady inertialess of an incompressible, electrically conducting fluid through insulated, variable-area ducts with circular cross sections in the presence of strong, transverse magnetic fields was analyzed.
23 citations
TL;DR: In this article, the influence of viscous dissipation, magnetic field, thermophoresis, Brownian motion, and thermal radiation on the fluid flow with gyrotactic microorganisms over a horizontal porous extending sheet is presented.
Abstract: In this article magnetohydrodynamic third-grade fluid flow with gyrotactic microorganisms over a horizontal porous extending sheet is presented. The influences of viscous dissipation, magnetic field, thermophoresis, Brownian motion, and thermal radiation are mainly focused in this research work. The modeled problem is solved analytically. The impressions of embedded factors on the fluid flow are displayed through graphs. Variation in Skin friction, local Nusselt, Sherwood and density number of motile microorganisms are calculated numerically and investigated. The second-grade parameters augmented the fluid flow velocity while the Hartmann number, third-grade parameter, and porosity parameter have a reverse influence on the fluid flow. The thermal stratification parameter and Prandtl number diminish the temperature of the fluid while other parameters increase the fluid flow temperature. The Peclet number increases the motile density function while other parameters have the opposite impact on the motile density of the fluid.
23 citations
TL;DR: In this article, the effect of slowly rotating systems with low frequency of oscillation when the conductivity of the fluid is low and the applied magnetic field is weak is studied. And the influence of different parameters viz. M 2 (Hartmann number), K 2 (rotation parameter) and θ (angle of inclination of magnetic field with the positive direction of axis of rotation) on the induced magnetic field component has been examined numerically.
23 citations
TL;DR: In this paper, a numerical technique for searching for the stability boundary for a resistive, straight-cylinder, magnetohydrodynamic equilibrium with spatially-dependent resistivity was developed.
Abstract: A numerical technique is developed for searching for the stability boundary for a resistive, straight-cylinder, magnetohydrodynamic equilibrium with spatially-dependent resistivity. For fixed aspect ratio, the boundary is a curve in the plane whose axes are Hartmann number and pinch ratio (or reciprocal of the safety factor at the wall). The technique is spectral and utilizes orthonormal eigenfunctions of the curl. Nonlinear behavior above the stability boundary is computed for a particular profile, using a nonlinear version of the code.
23 citations
TL;DR: In this paper, a numerical study is carried out to analyze magnetohydrodynamic mixed convection flow and heat transfer in a hexagonal cavity, where the horizontal walls of the enclosure are kept at constant temperature T h while the inclined walls are uniformly heated of temperature T c, maintained a consistent circumstance of T h > T c. Finite element method based on Galerkin Weighted Residual technique has been employed to solve the governing equations describing the flow model.
23 citations