Numerical simulation of hydrogen dispersion in the vicinity of a cubical building in stable stratified atmospheres

Héctor A. Olvera, Ahsan R. Choudhuri

Research output: Contribution to journalArticlepeer-review

45 Scopus citations

Abstract

A computational fluid dynamics (CFD) approach using the standard k - ε{lunate} turbulence model was applied to simulate hydrogen and methane dispersion around a cubical building. Model results were compared against towing-tank data and other numerical results. The relative impact between hydrogen and methane releases on the building and its surroundings under several stable atmospheric stratifications was assessed. The computed dispersion patterns show a greater risk potential of hydrogen in comparison to methane when released in the vicinity of a building. However, since hydrogen rapidly rises, the impact of a release on the surrounding buildings promptly diminishes. The results also depict complex interactions of hydrogen dispersion patterns due to strong buoyant forces.

Original languageEnglish (US)
Pages (from-to)2356-2369
Number of pages14
JournalInternational Journal of Hydrogen Energy
Volume31
Issue number15
DOIs
StatePublished - Dec 2006
Externally publishedYes

Keywords

  • Atmospheric dispersion
  • CFD
  • Impact assessment
  • k - ε{lunate} turbulence model
  • Micro-scale

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

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