On the importance of solid deformations in convection-dominated liquid/solid phase change of pure materials

Mansutti, Daniela; Bucchignani, Edoardo

doi:10.1007/s10492-011-0012-5

Cited by 7 publications

(2 citation statements)

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“…The results of the simulations match well with both the experimental results and other numerical simulations [66], and the multicellular streamline patterns match the simulations done by Hannoun [67]. Note that the current data creates a slightly more undulating solid-liquid front than the experimental results (see Figure 4); this has been a common problem with numerical simulations of melting gallium [68]. Wittig has recently argued that two-dimensional simulations of gallium melting overestimate the formation of steady convection cells because they do not account for drag on the horizontal walls [46].…”

Section: Phase Change Benchmarksupporting

confidence: 82%

Improving the performance of finned latent heat thermal storage devices using a Cartesian grid solver and machine-learning optimization techniques

Augspurger¹

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Section: Phase Change Benchmarksupporting

confidence: 82%

Improving the performance of finned latent heat thermal storage devices using a Cartesian grid solver and machine-learning optimization techniques

Augspurger¹

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“…Incorporating the appropriate ice constitutive law (Glen's law) (see Paterson [5]), we have extended to this application well-tested modeling and numerical simulation tools developed by two of the authors for solving moving boundary problems in materials science (metal melting/solidification, artificial crystal growth) [6][7][8] and for the evolution of the icy crust of Europa [9].…”

Section: Introductionmentioning

confidence: 99%

Modeling and numerical sensitivity study on the conjecture of a subglacial lake at Amundsenisen, Svalbard

Mansutti

Bucchignani

Otero

et al. 2015

Applied Mathematical Modelling

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We present a new numerical procedure to assess the plausibility of a subglacial lake in case of relative small/moderate extension and surging temperate icefield. In addition to the flat signal from Ground Penetrating Radar remote survey of the area, early indication of a likely subglacial lake, required icefield data are: top surface elevation and bathymetry, top surface velocity at some points, in-depth temperature and density profiles of upper layer. The procedure is based on a mathematical model of the evolution of dynamics and thermo-dynamics of the icefield and of a subglacial lake. The Glen's law is adopted for ice rheology and Stokes reduction is applied; Large Eddy Simulation technique is used for the lake. Ice/water phase change is described. Finite volumes for model discretization and a front-tracking technique to follow the moving interface characterize the numerical method.We have applied this procedure to the case of a subglacial lake conjectured in the area of Amundsenisen, Svalbard, and, here, the results of a sensitivity study are discussed. In particular we point out that the effect of firn and snow upper layers on the system, in terms of temperature field, density and water content, has to be included in the modeling, as it contributes to the overcoming of the ice metastable state and the release of subglacial water. Accordingly, ice water content changes have to be carefully described. The depth of the bed depression is confirmed to be critical for the formation of the lake.

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3D validation, 2D feasibility, corrected and developed correlations for pure solid-gallium phase change modeling by enthalpy-porosity methodology

Arıcı

2023

International Communications in Heat and Mass Transfer

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On the importance of solid deformations in convection-dominated liquid/solid phase change of pure materials

Cited by 7 publications

References 50 publications

Improving the performance of finned latent heat thermal storage devices using a Cartesian grid solver and machine-learning optimization techniques

Improving the performance of finned latent heat thermal storage devices using a Cartesian grid solver and machine-learning optimization techniques

Modeling and numerical sensitivity study on the conjecture of a subglacial lake at Amundsenisen, Svalbard

3D validation, 2D feasibility, corrected and developed correlations for pure solid-gallium phase change modeling by enthalpy-porosity methodology

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