Numerical analysis of gas explosion inside two rooms connected by ducts

Akinori Hashimoto, Akiko Matsuo

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)


Simulations of gas explosion of hydrogen/air mixture inside two rooms connected by ducts are carried out. Scalar transport chemical reaction model and LES turbulence model are utilized to reduce the calculation load and to conduct real-scale analysis. The effects of ignition source locations and volume of ignited room are analyzed, and the time history of pressure and rate of pressure rise in each room are focused in this study. When the volume of the ignited room is larger than the other room, the high pressure from the other room causes a force to act on the partition to the ignited room. This study indicates that the current technique can predict specific features of gas explosions inside two rooms connected by the ducts.

Original languageEnglish
Pages (from-to)455-461
Number of pages7
JournalJournal of Loss Prevention in the Process Industries
Issue number4-6
Publication statusPublished - 2007 Jul


  • Differential pressure
  • Flame propagation
  • Gas explosion
  • Rooms connected by ducts

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Food Science
  • Chemical Engineering(all)
  • Safety, Risk, Reliability and Quality
  • Energy Engineering and Power Technology
  • Management Science and Operations Research
  • Industrial and Manufacturing Engineering


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