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Scaling of thermo-magnetic convection

Bednarz, Tomasz P. , Lin, Wenxian , & Saha, Suvash C. (2010) Scaling of thermo-magnetic convection. In Proceedings of the 13th Asian Congress of Fluid Mechanics, Engineers Institute of Bangladesh, Dhaka, Bangladesh, pp. 798-800.

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Abstract

The scaling to characterize unsteady boundary layer development for thermo-magnetic convection of paramagnetic fluids with the Prandtl number greater than one is developed. Under the consideration is a square cavity with initially quiescent isothermal fluid placed in microgravity condition (g = 0) and subject to a uniform, vertical gradient magnetic field. A distinct magnetic thermal-boundary layer is produced by sudden imposing of a higher temperature on the vertical sidewall and as an effect of magnetic body force generated on paramagnetic fluid. The transient flow behavior of the resulting boundary layer is shown to be described by three stages: the start-up stage, the transitional stage and the steady state. The scaling is verified by numerical simulations with the magnetic momentum parameter m variation and the parameter γRa variation.

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ID Code: 44168
Item Type: Conference Paper
Keywords: Magnetic convection, Scaling analysis, Unsteady flow, Paramagnetic fluids, Thermal boundary layer
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MECHANICAL ENGINEERING (091300) > Numerical Modelling and Mechanical Characterisation (091307)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Engineering Systems
Copyright Owner: Copyright 2010 [please consult the authors]
Deposited On: 24 Aug 2011 08:07
Last Modified: 11 Apr 2013 20:14

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