MODELING OF CLOSE-CONTACT AND CONVECTIVE MELTING IN AN AXISYMMETRIC CYLINDRICAL GEOMETRY

T. Shockner, G. Ziskind

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This study investigates the mechanisms of macro-scale melting, in which the solid and liquid phases are separated by a defined interface. The main objective of our ongoing study is to develop a reliable numerical modeling which combines the general enthalpy formulation, convective heat transfer and rigid body sinking motion. Therefore, an advanced numerical model is developed and implemented using an in-house numerical code, built especially for this study. The numerical results were tested against benchmarks from the literature with gradually increasing complexity for which a good comparison was obtained. Then, the model is used to explore a case study of a cylindrical enclosure with isothermally heated bottom and side wall and insulated top wall. Two cases of temperature differences were investigated initially by assessing the melting patterns observed. The results were then generalized using dimensional analysis. The work illustrates that the new model can be applied to solve complex melting problems in axisymmetric geometry. The validated numerical model can now be used to investigate more cases, e.g. different aspect ratios and temperature conditions.

Original languageEnglish
Title of host publication5th-6th Thermal and Fluids Engineering Conference, TFEC 2021
PublisherBegell House Inc.
Pages517-520
Number of pages4
ISBN (Electronic)9781567005172
DOIs
StatePublished - 1 Jan 2021
Event5th-6th Thermal and Fluids Engineering Conference, TFEC 2021 - Virtual, Online
Duration: 26 May 202128 May 2021

Publication series

NameProceedings of the Thermal and Fluids Engineering Summer Conference
Volume2021-May
ISSN (Electronic)2379-1748

Conference

Conference5th-6th Thermal and Fluids Engineering Conference, TFEC 2021
CityVirtual, Online
Period26/05/2128/05/21

Keywords

  • Close-contact melting
  • Enthalpy method
  • Heat transfer
  • Phase change material

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes
  • Electrical and Electronic Engineering

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