Analysis of the drying behavior of suspension drops with spherical and ellipsoidal particles

Baek Sung Park, Won Gi Ahn, Kevin Injoe Jung, Seong Jae Lee, Kwan Young Lee, Hyun Wook Jung

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Employing multispeckle diffusing wave spectroscopy (MSDWS) as a noncontact light scattering method, drying dynamics of suspension drops with spherical and ellipsoidal particles have been investigted in real time. Scattered light intensity data during drying are converted to calculate the autocorrelation fuction and moment of inetia (IM) through co-occurrence matrix (COM). Using IM data, it is found that drying patterns of drops could be clearly divided into compacting and air-invading stages. Compared with the case with spherical particles, ellipsoidal particles with lower mobility in a suspension drop augment the period of air-invading stage in drying process due to the loosely packed pore structures between particles.

Original languageEnglish
Pages (from-to)1-8
Number of pages8
JournalDrying Technology
DOIs
Publication statusAccepted/In press - 2018 Feb 17

Keywords

  • Autocorrelation function
  • compacting and air-invading stages
  • moment of inertia
  • multispeckle diffusing wave spectroscopy
  • particles
  • suspension drying

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Physical and Theoretical Chemistry

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