An experimental and numerical investigation of natural convection melting

T.J. Scanlon, M.T. Stickland

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The melting of a vertical ice cylinder in water is investigated in this paper. The experiments were carried out in a water-filled cylindrical Perspex barrel with adiabatic walls for Rayleigh numbers of 0.22x108 and 0.475x108. The ice crystal is suspended in the water and experimental images of the natural convection melting process were obtained using both shadowgraphy and particle image velocimetry (PIV) techniques. This data is compared with a numerical model which attempts to capture the melt-front on a fixed computational grid. The numerical model takes into account the density inversion effects in the water. The results show the applicability of PIV to this type of flow and demonstrate a simple numerical model to effectively resolve the melting phenomenon.
LanguageEnglish
Pages181-190
Number of pages9
JournalInternational Communications in Heat and Mass Transfer
Volume28
Issue number2
DOIs
Publication statusPublished - 2001

Fingerprint

Natural convection
free convection
Melting
melting
Numerical models
Water
Ice
particle image velocimetry
Velocity measurement
water
ice
Perspex (trademark)
computational grids
Polymethyl Methacrylate
Rayleigh number
inversions
Crystals
crystals
Experiments

Keywords

  • heat transfer
  • energy
  • convection
  • mechanical engineering

Cite this

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An experimental and numerical investigation of natural convection melting. / Scanlon, T.J.; Stickland, M.T.

In: International Communications in Heat and Mass Transfer, Vol. 28, No. 2, 2001, p. 181-190.

Research output: Contribution to journalArticle

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AU - Stickland, M.T.

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AB - The melting of a vertical ice cylinder in water is investigated in this paper. The experiments were carried out in a water-filled cylindrical Perspex barrel with adiabatic walls for Rayleigh numbers of 0.22x108 and 0.475x108. The ice crystal is suspended in the water and experimental images of the natural convection melting process were obtained using both shadowgraphy and particle image velocimetry (PIV) techniques. This data is compared with a numerical model which attempts to capture the melt-front on a fixed computational grid. The numerical model takes into account the density inversion effects in the water. The results show the applicability of PIV to this type of flow and demonstrate a simple numerical model to effectively resolve the melting phenomenon.

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