Transients and turbulence pockets in thermal convection of paramagnetic fluid subjected to strong magnetic field gradients

Title

Transients and turbulence pockets in thermal convection of paramagnetic fluid subjected to strong magnetic field gradients

 Author

Kenjeres, S.
Wrobel, W.
Pyrda, L.
Fornalik-Wajs, E.
Szmyd, J.S.

Faculty

Applied Sciences

 Department

Chemical Engineering

 Date

2011-12-31

 Abstract

We performed combined experimental and numerical studies of the flow and heat transfer of a paramagnetic fluid inside a differentially heated cubical enclosure subjected to various strong non-uniform magnetic field gradients. Two different heating scenarios are considered: unstable (heated from below) and stable (heated from above) initial thermal stratification. In contrast to the previously reported studies in literature, which observed solely laminar flow regimes, we investigated also appearance and sustenance of the periodic- and fully transient-flow motions for the very first time. This was consequence of using significantly stronger magnetic field strength (up to 10 T experimentally, and up to 15 T numerically) than those used in previous studies (up to 5 T). Detailed comparison between experiments and numerical simulations are performed and generally very good agreements were obtained.

 To reference this document use:

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 DOI

https://doi.org/10.1088/1742-6596/318/7/072028

 Publisher

IOP Publishing

 ISSN

1742-6596

 Source

http://iopscience.iop.org/1742-6596/318/7/072028

 Source

Journal of Physics. Conference Series, 318(7)2011

 Part of collection

Institutional Repository

 Document type

conference paper

 Rights

(c)2011 The Authors and IOP
Files
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