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 effect of magnetic field on the combined buoyancy and surface tension driven convection in a cylindrical annular enclosure is studied. And the results reveal that, in tall cavities, the axial magnetic field suppresses the surface tension flow more effectively than the radial magnetic field.
55 citations
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TL;DR: In this article, the peristaltic flow of an incompressible viscous-fluid-containing metallic nanoparticles in an irregular conduit is analyzed using the long wavelength and low Reynolds number approximation.
Abstract: The peristaltic flow of an incompressible viscous-fluid-containing metallic nanoparticles in an irregular conduit is analyzed. The metallic nanoparticles for the peristaltic flow are not explored so far. The governing equations are streamlined using “long wavelength and low Reynolds number approximation.” Exact solutions have been evaluated for velocity, pressure gradient, the solid volume fraction of the nanoparticles, and temperature profile. The effects of various flow parameters, i.e., Hartmann number, Eckert number, the solid volume fraction of the nanoparticles amplitude ratio, and Prandtl number are presented graphically.
55 citations
01 Jan 2003
TL;DR: In this paper, the peristaltic transport of magnetohydrodynamic gravity flow was analyzed using a perturbation expansion in terms of a variant wave number, in an inclined planar channel having electrically insulated walls that are transversely displaced by an infinite, harmonic traveling wave of large wavelength.
Abstract: In order to determine the characteristics of the peristaltic transport of magnetohydrodynamic gravity flow, the motion of a hydromagnetic (electrically conducting), viscous and incompressible fluid in an inclined planar channel having electrically insulated walls that are transversely displaced by an infinite, harmonic traveling wave of large wavelength was analyzed using a perturbation expansion in terms of a variant wave number. We obtain explicit form for the velocity field, a relation between the pressure rise and flow rate, in terms of Reynolds number, wave number, Hartmann number, Froud number, inclined angle, and the occlusion. The effects of all parameters of the problem are discussed numerically and explained graphically. ﺔــﺻﻼﺨﻟا
55 citations
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TL;DR: In this article, two phases of nanofluid flow and heat transfer between moving parallel plates in the presence of the magnetic field were tackled by Differential Transform method (DTM).
Abstract: In this article, unsteady two phases of nanofluid flow and heat transfer between moving parallel plates in the presence of the magnetic field were tackled by Differential transform method (DTM). System of ordinary differential equations was obtained using the similarity transformation. Comparison with numerical method Runge-Kutta of order four specifies that Differential transform method is very applicable to solve these problems. We investigate the numerical results of different values of parameters e.g. the squeeze number, Eckert number and Hartmann number. This sort of results can help the engineers to create higher and researchers to analyze quicker and easier.
54 citations
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TL;DR: Results indicate that heat and mass transfer rate augment as Rayleigh number and volume fraction of nanoparticles increase and are found to drop with the increase in Hartmann number and buoyancy ratio.
54 citations