This article deals with the analysis of solidification of a 2-D semitransparent material using the lattice Boltzmann method (LBM). Both conduction and radiation terms in governing energy equation were computed using the LBM. First, the LBM formulation regarding conduction component was validated and the results analyzed. Next, the results involving phase change or radiation term in the LBM were compared with the finite volume method (FVM). The results show good accuracy and less time consumption during LBM implementation. Finally, temperature distribution, the location of solid-liquid front, mushy zone thickness and the effects of heat transfer parameters were studied. Solidification of 2-D semitransparent material is studied. Both conduction and radiation were computed using lattice Boltzmann method (LBM). LBM results validated by solving three benchmark problems. Effects of various parameters were studied on temperature distributions. show good accuracy and less time consumption during LBM implementation.
Related Content
Impregnation of a porous material with a PCM on a cotton fabric and the effect of vacuum on thermo-regulating textiles
The purpose of this study was the preparation of a form-stable composite phase change material (PCM) by incorporation of n-nonadecane within the expanded dolomite (ED). In this investigation, two approaches called impregnation treatment with vacuuming and impregnation by magnetic stirrer were use...


Analysis of transport of collimated radiation in a participating media using the lattice Boltzmann method
Application of the lattice Boltzmann method (LBM) recently proposed by Asinari et al. [Asinari P, Mishra SC, Borchiellini R. A lattice Boltzmann formulation to the analysis of radiative heat transfer problems in a participating medium. Numer Heat Transfer B 2010; 57:126–146] is extended to the ...
Luminescence and energy transfer mechanisms in CaWO4 single crystals
The processes of the excitation energy transfer to the emission centers have been investigated for calcium tungstate crystals taking into account features of the electronic structure of valence band and conduction band. The calculations of the electronic structure of host lattice CaWO4 were perfo...


Preparation of bi-layer-polymer coated silica using atom transfer radical polymerization and its application as restricted access phase for HPLC separation of hydrophobic molecules in biological fluids
A novel restricted access material was prepared by surface initiated atom transfer radical polymerization. The bi-layer-polymer structures were created on the surface of silica layer-by-layer. The inner layer was composed of poly(styrene-co-divinylbenzene), which was grafted first for binding sma...
The DRESOR Method for Radiative Heat Transfer in Semitransparent Graded index Cylindrical Medium
During a numerical analysis of radiative transfer in some cylindrical optical thermal analysis and thermal design, applying a cylindrical coordinate system would be much more convenient and precise than that using a Cartesian coordinate system. In this paper, the DRESOR method under a cylindrical...

Unravelling the secrets of Cs controlled secondary ion formation: Evidence of the dominance of site specific surface chemistry, alloying and ionic bonding
Exposure of ion bombarded solids to Cs gives rise to a very strong enhancement of the yields of negatively charged secondary ions and, concurrently, to a lowering of positive ion yields. The phenomena have been explored in a large number of experimental and theoretical studies but attempts to cla...
Electron microscopy analyses and electrical properties of the layered Bi2WO6 phase
The bismuth tungstate Bi2WO6 was synthesized using a classical coprecipitation method followed by a calcination process at different temperatures. The samples were characterized by X-ray diffraction, simultaneous thermogravimetry and differential thermal analysis (TGA/DTA), scanning and transmiss...

Preparation of aluminium ammonium calcium phosphates using microwave radiation
Microwave radiation was used in the acquisition of aluminium ammonium calcium phosphates. The substrates such as CaCO3, H3PO4, aqueous ammonia were reagent grade, whereas Al(OH)3 was prepared afresh. The influence of process parameters (pH 6 ± 2, molar ratios of Al3+: Ca2+: PO43− in the substr...
Molecular modeling and spectral comparison for the change in methyl position of nitrophenol compounds 2-methyl-4-nitrophenol and 3-methyl-4-nitrophenol: A density functional theoretical study
FT-IR and FT-Raman spectra of 2-methyl-4-nitrophenol (PNOC) and 3-methyl-4-nitrophenol (PNMC) were recorded and analyzed in the solid phase in the region 4000–400cm−1 and 3500–50cm−1 respectively. Molecular modeling of the compounds PNOC and PNMC were done by the density functional theore...

Structure and redox properties of perovskite Y0.9Sr0.1Cr1−xFexO3−δ
The aim of this paper is to examine the feasibility of Y0.9Sr0.1Cr1−x Fe x O3−δ for potential use as anode materials in solid oxide fuel cells (SOFCs) fed with fuel gas containing H2S, as well as other electrochemical devise. Y0.9Sr0.1Cr1−x Fe x O3−δ (x =0.1, 0.3, 0.5) were synthesize...