Conditional Flamelet Structure and Burning Velocity of Turbulent Premixed Flames

Yeongdo Park and Kang Y. Huh

doi:10.15231/jksc.2021.26.4.041

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2021 Vol.26, Issue 4 Preview Page

Research Article

Conditional Flamelet Structure and Burning Velocity of Turbulent Premixed Flames 조건 평균법에 의한 난류 예혼합 화염편 구조와 전파 속도 예측

31 December 2021. pp. 41-50

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Abstract

A governing equation is derived from the equation of the reaction progress variable for the conditional flamelet structure and the turbulent burning velocity in turbulent premixed combustion. Direct numerical simulations are conducted for constant density flames to validate the newly derived conditional flamelet equation. Good agreement is shown between the conditional flamelet equation and the flamelet structures and turbulent burning velocities from DNS. They are validated for laboratory flames as well by numerical solutions of the modified laminar premixed flame code in Cantera. Reasonable agreement is shown with a tuning constant for turbulent diffusivity to consider the uncertainty involved in each experimental setup and conditions in the references.

Keywords

Flamelet structure

Turbulent Burning Velocity

Turbulent Premixed Combustion

Direct Numerical Simulation

Cantera

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Information

Publisher :The Korean Society Combustion
Publisher(Ko) :한국연소학회
Journal Title :Journal of The Korean Society Combustion
Journal Title(Ko) :한국연소학회지
Volume : 26
No :4
Pages :41-50
Received Date :2021. 11. 26
Revised Date :2021. 12. 10
Accepted Date : 2021. 12. 15
DOI :https://doi.org/10.15231/jksc.2021.26.4.041

Journal of The Korean Society Combustion ISSN:1226-0959(Print) 2466-2089(Online) 한국연소학회지

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