Heating/melting of a fused silica particle by convection and radiation

Tseng, Charles C.; Viskanta, R.

doi:10.1016/j.ijheatmasstransfer.2006.01.041

Cited by 8 publications

(1 citation statement)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A simplified one-dimensional model has been proposed by Mason [14]. Such a model, which assumes the melting particle to be spherical and isothermal, is widely used [15][16][17]; also in applications involving the melting of nonspherical particles [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Shape evolution of a melting nonspherical particle

et al. 2015

View full text Add to dashboard Cite

In this study melting of irregular ice crystals was observed in an acoustic levitator. The evolution of the particle shape is captured using a high-speed video system. Several typical phenomena have been discovered: change of the particle shape, appearance of a capillary flow of the melted liquid on the particle surface leading to liquid collection at the particle midsection (where the interface curvature is smallest), and appearance of sharp cusps at the particle tips. No such phenomena can be observed during melting of spherical particles. An approximate theoretical model is developed which accounts for the main physical phenomena associated with melting of an irregular particle. The agreement between the theoretical predictions for the melting time, for the evolution of the particle shape, and the corresponding experimental data is rather good.

show abstract