Characteristics of Flame Modes for a Conical Bluff Body Burner With a Central Fuel Jet
Bluff body stabilized nonpremixed flames are usually used as pilot flames in lean-premixed combustors. Experiments are conducted to investigate the characteristics of the flame. Typical flame modes are investigated in both stable and unstable conditions. The flow structures, the reaction zone, and t...
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| Veröffentlicht in: | Journal of engineering for gas turbines and power 2013-09, Vol.135 (9), p.1-9 |
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| container_title | Journal of engineering for gas turbines and power |
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| creator | Tang, Haojie Yang, Dong Zhang, Tongfeng Zhu, Min |
| description | Bluff body stabilized nonpremixed flames are usually used as pilot flames in lean-premixed combustors. Experiments are conducted to investigate the characteristics of the flame. Typical flame modes are investigated in both stable and unstable conditions. The flow structures, the reaction zone, and the dynamics of unstable flames are measured with particle image velocimetry (PIV), intensified charge-coupled device (ICCD) and a high-speed camera, respectively, based on which the inherent mechanisms that influence the configuration and stabilization of the flame are analyzed. Stable flames are apparently influenced by the mixing characteristics in the recirculation zone. Flame detachment, a typical phenomenon of stable flames in a turbulent air flow, can be explained by the distribution of fuel concentration in the recirculation zone. The Reynolds number of air has different effects on different parts of the flame, which results in three unstable flame modes at different Reynolds numbers of air. These results could be helpful for the design of stable burners in practice. |
| doi_str_mv | 10.1115/1.4024951 |
| format | Article |
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Experiments are conducted to investigate the characteristics of the flame. Typical flame modes are investigated in both stable and unstable conditions. The flow structures, the reaction zone, and the dynamics of unstable flames are measured with particle image velocimetry (PIV), intensified charge-coupled device (ICCD) and a high-speed camera, respectively, based on which the inherent mechanisms that influence the configuration and stabilization of the flame are analyzed. Stable flames are apparently influenced by the mixing characteristics in the recirculation zone. Flame detachment, a typical phenomenon of stable flames in a turbulent air flow, can be explained by the distribution of fuel concentration in the recirculation zone. The Reynolds number of air has different effects on different parts of the flame, which results in three unstable flame modes at different Reynolds numbers of air. These results could be helpful for the design of stable burners in practice.</description><identifier>ISSN: 0742-4795</identifier><identifier>EISSN: 1528-8919</identifier><identifier>DOI: 10.1115/1.4024951</identifier><identifier>CODEN: JETPEZ</identifier><language>eng</language><publisher>New York, N: ASME</publisher><subject>Aerodynamics ; Applied sciences ; Bluff bodies ; Charge coupled devices ; Energy ; Energy. Thermal use of fuels ; Engines and turbines ; Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc ; Exact sciences and technology ; Fluid dynamics ; Fluid flow ; Gas Turbines: Combustion, Fuels, and Emissions ; Reynolds number ; Turbulence ; Turbulent flow</subject><ispartof>Journal of engineering for gas turbines and power, 2013-09, Vol.135 (9), p.1-9</ispartof><rights>2014 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a345t-70ae88e902d0ba64e9764a245d307faa2b84bb72e34307b7c6a3535640b7dbea3</citedby><cites>FETCH-LOGICAL-a345t-70ae88e902d0ba64e9764a245d307faa2b84bb72e34307b7c6a3535640b7dbea3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>315,781,785,27929,27930,38525</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=27805390$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Tang, Haojie</creatorcontrib><creatorcontrib>Yang, Dong</creatorcontrib><creatorcontrib>Zhang, Tongfeng</creatorcontrib><creatorcontrib>Zhu, Min</creatorcontrib><title>Characteristics of Flame Modes for a Conical Bluff Body Burner With a Central Fuel Jet</title><title>Journal of engineering for gas turbines and power</title><addtitle>J. Eng. Gas Turbines Power</addtitle><description>Bluff body stabilized nonpremixed flames are usually used as pilot flames in lean-premixed combustors. Experiments are conducted to investigate the characteristics of the flame. Typical flame modes are investigated in both stable and unstable conditions. The flow structures, the reaction zone, and the dynamics of unstable flames are measured with particle image velocimetry (PIV), intensified charge-coupled device (ICCD) and a high-speed camera, respectively, based on which the inherent mechanisms that influence the configuration and stabilization of the flame are analyzed. Stable flames are apparently influenced by the mixing characteristics in the recirculation zone. Flame detachment, a typical phenomenon of stable flames in a turbulent air flow, can be explained by the distribution of fuel concentration in the recirculation zone. The Reynolds number of air has different effects on different parts of the flame, which results in three unstable flame modes at different Reynolds numbers of air. These results could be helpful for the design of stable burners in practice.</description><subject>Aerodynamics</subject><subject>Applied sciences</subject><subject>Bluff bodies</subject><subject>Charge coupled devices</subject><subject>Energy</subject><subject>Energy. Thermal use of fuels</subject><subject>Engines and turbines</subject><subject>Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc</subject><subject>Exact sciences and technology</subject><subject>Fluid dynamics</subject><subject>Fluid flow</subject><subject>Gas Turbines: Combustion, Fuels, and Emissions</subject><subject>Reynolds number</subject><subject>Turbulence</subject><subject>Turbulent flow</subject><issn>0742-4795</issn><issn>1528-8919</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNqF0DtLxEAQwPFFFDwfhbXNNoIW0X0_Su_wfKDY-CiXSTLBSC6ru0nhtzfHHbZWA8NvpvgTcsLZJedcX_FLxYTymu-QGdfCFc5zv0tmzCpRKOv1PjnI-ZMxLqWyM_K2-IAE1YCpzUNbZRobuuxghfQp1phpExMFuoh9W0FH593YNHQe6x86H1OPib63w8caYD-kCSxH7OgDDkdkr4Eu4_F2HpLX5c3L4q54fL69X1w_FiCVHgrLAJ1Dz0TNSjAKvTUKhNK1ZLYBEKVTZWkFSjUtSlsZkFpqo1hp6xJBHpLzzd-vFL9HzENYtbnCroMe45gDN047YbmT_1MtmFfeGD7Riw2tUsw5YRO-UruC9BM4C-vMgYdt5smebd9CnhI1CfqqzX8HwjqmpWeTO904yCsMn3HKN4UJ0kpjrPwF4neCcw</recordid><startdate>20130901</startdate><enddate>20130901</enddate><creator>Tang, Haojie</creator><creator>Yang, Dong</creator><creator>Zhang, Tongfeng</creator><creator>Zhu, Min</creator><general>ASME</general><general>American Society of Mechanical Engineers</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SU</scope><scope>7TB</scope><scope>8FD</scope><scope>C1K</scope><scope>F28</scope><scope>FR3</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20130901</creationdate><title>Characteristics of Flame Modes for a Conical Bluff Body Burner With a Central Fuel Jet</title><author>Tang, Haojie ; Yang, Dong ; Zhang, Tongfeng ; Zhu, Min</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a345t-70ae88e902d0ba64e9764a245d307faa2b84bb72e34307b7c6a3535640b7dbea3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Aerodynamics</topic><topic>Applied sciences</topic><topic>Bluff bodies</topic><topic>Charge coupled devices</topic><topic>Energy</topic><topic>Energy. Thermal use of fuels</topic><topic>Engines and turbines</topic><topic>Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc</topic><topic>Exact sciences and technology</topic><topic>Fluid dynamics</topic><topic>Fluid flow</topic><topic>Gas Turbines: Combustion, Fuels, and Emissions</topic><topic>Reynolds number</topic><topic>Turbulence</topic><topic>Turbulent flow</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tang, Haojie</creatorcontrib><creatorcontrib>Yang, Dong</creatorcontrib><creatorcontrib>Zhang, Tongfeng</creatorcontrib><creatorcontrib>Zhu, Min</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Environmental Engineering Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of engineering for gas turbines and power</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Tang, Haojie</au><au>Yang, Dong</au><au>Zhang, Tongfeng</au><au>Zhu, Min</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Characteristics of Flame Modes for a Conical Bluff Body Burner With a Central Fuel Jet</atitle><jtitle>Journal of engineering for gas turbines and power</jtitle><stitle>J. Eng. Gas Turbines Power</stitle><date>2013-09-01</date><risdate>2013</risdate><volume>135</volume><issue>9</issue><spage>1</spage><epage>9</epage><pages>1-9</pages><issn>0742-4795</issn><eissn>1528-8919</eissn><coden>JETPEZ</coden><abstract>Bluff body stabilized nonpremixed flames are usually used as pilot flames in lean-premixed combustors. Experiments are conducted to investigate the characteristics of the flame. Typical flame modes are investigated in both stable and unstable conditions. The flow structures, the reaction zone, and the dynamics of unstable flames are measured with particle image velocimetry (PIV), intensified charge-coupled device (ICCD) and a high-speed camera, respectively, based on which the inherent mechanisms that influence the configuration and stabilization of the flame are analyzed. Stable flames are apparently influenced by the mixing characteristics in the recirculation zone. Flame detachment, a typical phenomenon of stable flames in a turbulent air flow, can be explained by the distribution of fuel concentration in the recirculation zone. The Reynolds number of air has different effects on different parts of the flame, which results in three unstable flame modes at different Reynolds numbers of air. These results could be helpful for the design of stable burners in practice.</abstract><cop>New York, N</cop><pub>ASME</pub><doi>10.1115/1.4024951</doi><tpages>9</tpages></addata></record> |
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| source | ASME Transactions Journals (Current); Alma/SFX Local Collection |
| subjects | Aerodynamics Applied sciences Bluff bodies Charge coupled devices Energy Energy. Thermal use of fuels Engines and turbines Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc Exact sciences and technology Fluid dynamics Fluid flow Gas Turbines: Combustion, Fuels, and Emissions Reynolds number Turbulence Turbulent flow |
| title | Characteristics of Flame Modes for a Conical Bluff Body Burner With a Central Fuel Jet |
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