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Heat transfer analysis of thermocapillary convection in a two-layered fluid system

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Autore: D. Ludovisi, S.S. Cha, W.M. Worek

Collana: BT - 34 - Mag 06 - Energy: production, distribution and conservation

Note:
The present work is focused on the study of rather complex convective flow and heat transfer phenomena in a cavity, subject to both buoyancy and thermocapillary effects, which can be influenced by the application of a magnetic field.
That is, with the encapsulant liquid posing magnetic properties, in a buoyancy force of magnetic origin can arise to either enhance or reverse the gravity effect when the cavity is placed in a non-uniform magnetic field. In our study of cavity flow, the velocity and the temperature distribution of the two-layered liquid system can be significantly changed to alter the heat transfer by varying the intensity and gradient of the applied magnetic field. The preliminary results of numerical computation modeling that are presented here are for a cavity with double liquid layers of MnCl2.4H2O and Fluorinert FC-40 under the influence of various magnetic field intensities and gradients.


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