A new Lagrangian stochastic model for the gravity-slumping/spreading motion of a dense gas

Changhoon Lee, Byung Gu Kim, Suk Yul Ko

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

A new dispersion model for dense gas which is released into the atmosphere on the flat terrain is constructed within the Lagrangian framework. Using the hydrostatic assumption for pressure distribution within cloud due to density variation, slumping motion is successfully incorporated into the Lagrangian model with entrainment effect naturally considered. Turbulence suppression due to stable stratification within cloud is also taken into consideration in the model formulation. Various results including time variant and maximum concentration predictions by the proposed model are compared with the available measured data in the experiment conducted in Thorney Island in 1984 with good agreement.

Original languageEnglish
Pages (from-to)7874-7886
Number of pages13
JournalAtmospheric Environment
Volume41
Issue number36
DOIs
Publication statusPublished - 2007 Nov 1

All Science Journal Classification (ASJC) codes

  • Environmental Science(all)
  • Atmospheric Science

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