Development of new snowdrift model based on two transport equations of drifting snow density: Numerical prediction of snowdrift around buildings using CFD (Part 2)

Tsubasa Okaze, Yoshihide Tominaga, Akashi Mochida

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

This study aims to develop a new drifting snow model that solves two transport equations of drifting snow densities of the snow particles falling from the sky and those coming from the ground surface. Because the shape of snow particles falling from the sky is completely different from that of snow particles lifted up from the snow surface which are broken apart by repeated collision with the surface. CFD prediction of snowdrift around a cubic shaped building model using the developed new model was carried out and its accuracy was examined based on the comparison with field measurement conducted by Qikawa et al Furthermore, the mechanism of snowdrift formation around the building model was clarified by estimating the contribution ratio of the snow particles from the air and those from the surface to snow coverage distribution.

Original languageEnglish
Pages (from-to)149-156
Number of pages8
JournalJournal of Environmental Engineering (Japan)
Volume78
Issue number684
DOIs
Publication statusPublished - 2013 Feb

Keywords

  • Contribution ratio of snow from surface to accumulated snow
  • Drifting snow density
  • Re-entrainment of snow
  • Settling velocity of snow particles
  • Two transport equations

ASJC Scopus subject areas

  • Environmental Engineering

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