Thermomagnetic convection
Webb1 juli 1999 · Thermomagnetic convection was investigated experimentally by infrared thermography and validated numerically by a finite-element analysis. A cavity filled with a magnetic liquid was under the influence of a permanent magnet that provided an external magnetic field and was subjected to thermal forcing by maintaining the two opposite … Webb26 aug. 2024 · The thermomagnetic mechanism of convection is considered at various orientations of the applied uniform magnetic field with respect to the temperature …
Thermomagnetic convection
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Webb1 juli 2024 · The transition from natural convection to thermomagnetic convection of a mag- netic fluid in a non-uniform magnetic field. J. Magn. Magn. Mater., 447 (2024), pp. 116-123. View PDF View article View in Scopus Google Scholar [49] Comsol Multiphysics OR , User's Guide, Version 5.4. http://confirmedfreight.com/the-wire-38db6-%D9%85%D8%AA%D8%B1%D8%AC%D9%85
Webb1 feb. 2024 · The magnetic buoyancy generates a thermomagnetic convection in the cylindrical annulus at a critical value of the temperature difference. The threshold of the thermomagnetic convection depends on the radius ratio of the annulus and it is independent of the Prandtl number (Pr). The centrifugal instability is affected by the … Webb10 aug. 2024 · The correction Rayleigh number is computedas a function of the modulation frequency, porous and magnetic parameters. It is expounded that, for small and reasonable values of the modulation frequency, gravity modulation and magnetic mechanism have opposing influence on the stability.
WebbThe physics of thermomagnetic convection is a highly multi-disciplinary area, which combines fluid dynamics and heat transfer with magnetism. This application utilizes ferrofluids whose magnetic properties are strongly influenced by temperature which are called temperature sensitive ferrofluids (TSFF) in this study. Webb1 feb. 2024 · Thermomagnetic convection occurs inside the annulus under the combined effect of gravity and magnetic force. In the present study, the following assumptions are …
Webb11 okt. 2024 · Using neutron powder diffraction on W-type hexaferrites, planar magnetic ordering described in Cm′cm′ was found for SrCo2Fe16O27 and SrCoZnFe16O27, while SrZn2Fe16O27 had uniaxial ordering described in P63/mm′c′. Thermomagnetic measurements above room temperature also indicated magnetic transitions for …
Webb26 juli 2024 · An entropy generation analysis for thermomagnetic convection was numerically studied for paramagnetic air inside a porous cavity in the presence of the … honey testing labsWebb1 jan. 2024 · Request PDF FERROMAGNETIC CONVECTION IN A SPARSELY DISTRIBUTED POROUS MEDIUM WITH MAGNETIC FIELD DEPENDENT VISCOSITY REVISITED The effect of magnetic field dependent (MFD) viscosity on the ... honey testing nzWebbThermomagnetic convection Ferrofluids can be used to transfer heat, since heat and mass transport in such magnetic fluids can be controlled using an external magnetic field. … honey testosteroneWebbAbstract. A numerical study is performed to demonstrate the thermomagnetic convection of air in a side-wall heated enclosure under constant gravity and time-periodic … honey testing marketWebb1 mars 2024 · The thermomagnetic convection which has a great potential for better heat transfer than natural convection is of considerable interest recently in many engineering … honey testing laboratory in indiaWebb15 nov. 2024 · Thermomagnetic convection and entropy analysis in a ferrofluid-filled cubical cavity, having a centrally placed cylindrical heat source is investigated numerically. The magnetic field is created by either three normal permanent magnets or two Halbach array magnets. The governing equations are solved using a finite-volume, primitive … honey testing machineWebb23 maj 2024 · Thermomagnetic convection of a ferrofluid flow induced by the internal magnetic field around a vertical current-carrying wire was theoretically analyzed and experimentally validated for the first time. The Nusselt number for a heated 50-μm diameter wire in a ferrofluid was measured for different electrical currents and fluid … honey testing parameters