Investigation of a turbulent premixed combustion flame in a backward-facing step combustor; effect of equivalence ratio

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Investigation of a turbulent premixed combustion flame in a backward-facing step combustor; effect of equivalence ratio

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作者：Medhat A. Nemitallah^a ; ^b ; ^c ; ^{mahmed@mit.edu" class="auth_mail" title="E-mail the corresponding author} ; ^{medhatahmed@kfupm.edu.sa" class="auth_mail" title="E-mail the corresponding author} ; Gaurav Kewlani^a ; Seunghyuck Hong^a ; Santosh J. Shanbhogue^a ; Mohamed A. Habib^b ; Ahmed F. Ghoniem^a
关键词：Flame stability ; Large eddy simulation (LES) ; Particle image velocimetry (PIV) ; Premixed flame ; Recirculation zone (RZ) ; Step combustor
刊名：Energy
出版年：2016
出版时间：15 January 2016
年：2016
卷：95
期：Complete
页码：211-222
全文大小：2984 K

文摘

class="label">•: Experimental and CFD analysis of propane-air premixed flame in a step-combustor.
class="label">•: LES coupled with ATF approach is utilized in flame analysis over wide range of class="mathmlsrc">class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0360544215016527&_mathId=si30.gif&_user=111111111&_pii=S0360544215016527&_rdoc=1&_issn=03605442&md5=236b0e183b41231f7183a43151a446e4" title="Click to view the MathML source">Φclass="mathContainer hidden">class="mathCode"> $Φ$ .
class="label">•: The RZ is formed of PE and SE, and its overall size is impacted by the equivalence ratio.
class="label">•: Flame is lifted-off at class="mathmlsrc">class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0360544215016527&_mathId=si30.gif&_user=111111111&_pii=S0360544215016527&_rdoc=1&_issn=03605442&md5=236b0e183b41231f7183a43151a446e4" title="Click to view the MathML source">Φclass="mathContainer hidden">class="mathCode"> $Φ$ = 0.63 and it is completely extinguished at class="mathmlsrc">class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0360544215016527&_mathId=si30.gif&_user=111111111&_pii=S0360544215016527&_rdoc=1&_issn=03605442&md5=236b0e183b41231f7183a43151a446e4" title="Click to view the MathML source">Φclass="mathContainer hidden">class="mathCode"> $Φ$ = 0.45.
class="label">•: The results showed the ability of the LES to capture turbulent-reactive flow features.