Prediction of turbulent premixed combustion by a hybrid turbulence model

Tatsuya Hasegawa, Kazuhiro Ouryouji, Shinnosuke Nishiki

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A new turbulence model called "hybrid" model was proposed to simulate turbulent premised combustion with flame-generated turbulence and counter-gradient diffusion. This model calculated the Reynolds stress by a modified two-equation model including pressure terms, which represented turbulence generation due to combustion. It also calculated the turbulent scalar flux by a second moment equation including pressure and reaction terms, which represented the counter-gradient diffusion. The model constants were evaluated by DNS database, and these models were in good agreement with DNS. It was proved that the simulation of one-dimensional propagating turbulent flames by this "hybrid model" could express both turbulence generation and counter-gradient diffusion.

Original languageEnglish
Title of host publicationCollection of Technical Papers - 3rd International Energy Conversion Engineering Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
Pages221-227
Number of pages7
ISBN (Print)1563477343, 9781563477348
DOIs
StatePublished - 2005
Externally publishedYes
Event3rd International Energy Conversion Engineering Conference - San Francisco, CA, United States
Duration: 15 Aug 200518 Aug 2005

Publication series

NameCollection of Technical Papers - 3rd International Energy Conversion Engineering Conference
Volume1

Conference

Conference3rd International Energy Conversion Engineering Conference
Country/TerritoryUnited States
CitySan Francisco, CA
Period15/08/0518/08/05

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