Parrott, Kevin and Tilford, Tim (2007) Numerical simulation of microwave thawing using a coupled solver approach. PAMM - Proceedings in Applied Mathematics and Mechanics, 7 (1). pp. 1150601-1150602. ISSN 1617-7061 (online) (doi:https://doi.org/10.1002/pamm.200700212)

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Abstract

Thawing of a frozen food product in a domestic microwave oven is numerically simulated using a coupled solver approach. The approach consists of a dedicated electromagnetic FDTD solver and a closely coupled UFVM multi-physics package. Two overlapping numerical meshes are defined; the food material and container were meshed for heat transfer and phase change solution, whilst the microwave oven cavity and waveguide were meshed for the microwave irradiation. The two solution domains were linked using a cross-mapping routine. This approach allowed the rotation of the food load to be captured. Power densities obtained on the structured FDTD mesh were interpolated onto the UFVM mesh for each timestep/turntable position. The UFVM solver utilised the power density data to advance the temperature and phase distribution solution. The temperature-dependant dielectric and thermo-physical properties of the food load were updated prior to revising the electromagnetic solution. Changes in thermal/electric properties associated with the phase transition were fully accounted for as well as heat losses from product to cavity. Two scenarios were investigated: a centric and eccentric placement on the turntable. Developing temperature fields predicted by the numerical solution are validated against experimentally obtained data. Presented results indicate the feasibility of fully coupled simulations of the microwave heating of a frozen product. (© 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

Item Type:	Article
Additional Information:	This paper was presented at the ICIAM07 Minisymposia - 15 Modelling and Simulation for Industry, and was subsequently published in the journal PAMM, Proceedings in Applied Mathematics and Mechanics, a Special Issue: Sixth International Congress on Industrial Applied Mathematics (ICIAM07) and GAMM Annual Meeting, Zürich 2007. This special issue assembles the Minisymposia and Contributed papers to both the 6th International Congress on Industrial and Applied Mathematics, ICIAM07, held 16-20 July 2007 in Zürich and the 78th Annual Meeting of the Gesellschaft für Angewandte Mathematik und Mechanik, held as an embedded meeting of ICIAM07.
Uncontrolled Keywords:	information visualisation, cognition, interaction design, visual impairment
Subjects:	Q Science > QA Mathematics
Pre-2014 Departments:	School of Computing & Mathematical Sciences > Centre for Numerical Modelling & Process Analysis School of Computing & Mathematical Sciences School of Computing & Mathematical Sciences > Centre for Numerical Modelling & Process Analysis > Computational Mechanics & Reliability Group School of Computing & Mathematical Sciences > Department of Mathematical Sciences School of Computing & Mathematical Sciences > Computer & Computational Science Research Group School of Computing & Mathematical Sciences > Department of Computer Science School of Computing & Mathematical Sciences > Centre for Numerical Modelling & Process Analysis > Computational Science & Engineering Group
Related URLs:	Publisher Organisation Organisation
Last Modified:	14 Oct 2016 09:03
URI:	http://gala.gre.ac.uk/id/eprint/1218

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