A New Mesoscopic Scale Timestep Adjustable Non-Dimensional Lattice Boltzmann Method for Melting and Solidification Heat Transfer

UM > Faculty of Science and Technology > DEPARTMENT OF ELECTROMECHANICAL ENGINEERING

Status	已發表Published
	A New Mesoscopic Scale Timestep Adjustable Non-Dimensional Lattice Boltzmann Method for Melting and Solidification Heat Transfer
	Su, Y.; Davidson, J.H.
	2016
Source Publication	International Journal of Heat and Mass Transfer
ISSN	0017-9310
Pages	1106-1119
Abstract	A mesoscopic scale timestep adjustable non-dimensional lattice Boltzmann method (NDLBM) for fluid flow and heat transfer with solid–liquid phase change is developed using a scaling analysis based on the mesoscopic length and velocity scales. The interface between fluid and solid is treated as a mixture domain with transient porosity distributions and thickness. Timesteps are adjusted by using a transient mesoscopic Mach number independent of mesh size to speed up the computation. The code is validated by comparison of transient Nusselt numbers, isotherms, streamlines, and porosity with prior studies of natural convection in a square enclosure with and without phase change material. A benchmark problem is proposed to obtain the same equilibrium state for both melting and solidification procedures. Full maps of the flow and heat transfer patterns for both melting and solidification are presented based on the key dimensionless governing parameters. The effects of Mach, Stefan (0.01–10), Rayleigh (10^3–10^8), and Prandtl (0.1–10) numbers are discussed.
Keyword	Melting Non-dimensional lattice Boltzmann method Phase change Solidification
Language	英語English
The Source to Article	PB_Publication
PUB ID	19347
Document Type	Journal article
Collection	DEPARTMENT OF ELECTROMECHANICAL ENGINEERING
Corresponding Author	Su, Y.
Recommended Citation GB/T 7714	Su, Y.,Davidson, J.H.. A New Mesoscopic Scale Timestep Adjustable Non-Dimensional Lattice Boltzmann Method for Melting and Solidification Heat Transfer[J]. International Journal of Heat and Mass Transfer, 2016, 1106-1119.
APA	Su, Y.., & Davidson, J.H. (2016). A New Mesoscopic Scale Timestep Adjustable Non-Dimensional Lattice Boltzmann Method for Melting and Solidification Heat Transfer. International Journal of Heat and Mass Transfer, 1106-1119.
MLA	Su, Y.,et al."A New Mesoscopic Scale Timestep Adjustable Non-Dimensional Lattice Boltzmann Method for Melting and Solidification Heat Transfer".International Journal of Heat and Mass Transfer (2016):1106-1119.

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