Temperature measurements in an axisymmetric methane–air flame using Talbot images
The paper discusses the principles of optical testing of transparent objects using the Talbot images method and its applicability to diagnostic of flames. The experimental study was performed for premixed methane – air flame formed by an axisymmetric nozzle. The local deflection angles of the probe...
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| Veröffentlicht in: | Experiments in fluids 2015-02, Vol.56 (2), p.1-9, Article 31 |
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| creator | Khramtsov, P. P. Penyazkov, O. G. Shatan, I. N. |
| description | The paper discusses the principles of optical testing of transparent objects using the Talbot images method and its applicability to diagnostic of flames. The experimental study was performed for premixed methane
–
air flame formed by an axisymmetric nozzle. The local deflection angles of the probe radiation were determined from measurements of the relative displacements of intensity maxima of the Talbot image which is caused by passing of light through the flame. The Abel integral equation was solved to reconstruct the refractive index distribution in the flame. Calculation of the temperature field from the refractive index data was based on neglecting the spatial variation of the component composition. Inaccuracy of the calculations was evaluated by comparing the results with the thermocouple measurements. The results demonstrate that the Talbot images method can be used to measure the temperature distribution in axisymmetric reacting gas flows with high spatial resolution. |
| doi_str_mv | 10.1007/s00348-015-1906-x |
| format | Article |
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–
air flame formed by an axisymmetric nozzle. The local deflection angles of the probe radiation were determined from measurements of the relative displacements of intensity maxima of the Talbot image which is caused by passing of light through the flame. The Abel integral equation was solved to reconstruct the refractive index distribution in the flame. Calculation of the temperature field from the refractive index data was based on neglecting the spatial variation of the component composition. Inaccuracy of the calculations was evaluated by comparing the results with the thermocouple measurements. The results demonstrate that the Talbot images method can be used to measure the temperature distribution in axisymmetric reacting gas flows with high spatial resolution.</description><identifier>ISSN: 0723-4864</identifier><identifier>EISSN: 1432-1114</identifier><identifier>DOI: 10.1007/s00348-015-1906-x</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Axisymmetric ; Deflection ; Engineering ; Engineering Fluid Dynamics ; Engineering Thermodynamics ; Fluid- and Aerodynamics ; Heat and Mass Transfer ; Mathematical analysis ; Maxima ; Refractive index ; Refractivity ; Research Article ; Temperature distribution ; Thermocouples</subject><ispartof>Experiments in fluids, 2015-02, Vol.56 (2), p.1-9, Article 31</ispartof><rights>Springer-Verlag Berlin Heidelberg 2015</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c321t-d23040999396201d1ba39ebea89300bf0db82f83225a245190faeeb019bd7c463</citedby><cites>FETCH-LOGICAL-c321t-d23040999396201d1ba39ebea89300bf0db82f83225a245190faeeb019bd7c463</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00348-015-1906-x$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00348-015-1906-x$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27903,27904,41467,42536,51297</link.rule.ids></links><search><creatorcontrib>Khramtsov, P. P.</creatorcontrib><creatorcontrib>Penyazkov, O. G.</creatorcontrib><creatorcontrib>Shatan, I. N.</creatorcontrib><title>Temperature measurements in an axisymmetric methane–air flame using Talbot images</title><title>Experiments in fluids</title><addtitle>Exp Fluids</addtitle><description>The paper discusses the principles of optical testing of transparent objects using the Talbot images method and its applicability to diagnostic of flames. The experimental study was performed for premixed methane
–
air flame formed by an axisymmetric nozzle. The local deflection angles of the probe radiation were determined from measurements of the relative displacements of intensity maxima of the Talbot image which is caused by passing of light through the flame. The Abel integral equation was solved to reconstruct the refractive index distribution in the flame. Calculation of the temperature field from the refractive index data was based on neglecting the spatial variation of the component composition. Inaccuracy of the calculations was evaluated by comparing the results with the thermocouple measurements. The results demonstrate that the Talbot images method can be used to measure the temperature distribution in axisymmetric reacting gas flows with high spatial resolution.</description><subject>Axisymmetric</subject><subject>Deflection</subject><subject>Engineering</subject><subject>Engineering Fluid Dynamics</subject><subject>Engineering Thermodynamics</subject><subject>Fluid- and Aerodynamics</subject><subject>Heat and Mass Transfer</subject><subject>Mathematical analysis</subject><subject>Maxima</subject><subject>Refractive index</subject><subject>Refractivity</subject><subject>Research Article</subject><subject>Temperature distribution</subject><subject>Thermocouples</subject><issn>0723-4864</issn><issn>1432-1114</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNp9kE1OwzAQhS0EEqVwAHZZsjHM2M6Pl6jiT6rEgrK2nGRSUsVJsROp3XEHbshJcFXWSCO9xXxvNO8xdo1wiwD5XQCQquCAKUcNGd-dsBkqKTgiqlM2g1xIropMnbOLEDYQQQ3FjL2tyG3J23HylDiyIaqjfgxJ2yc2zq4Ne-do9G0V9-OH7enn69u2Pmk66yiZQtuvk5XtymFMWmfXFC7ZWWO7QFd_Omfvjw-rxTNfvj69LO6XvJICR14LCQq01lJnArDG0kpNJdlCS4CygbosRFNIIVIrVBpjNZaoBNRlnVcqk3N2c7y79cPnRGE0rg0VdV38cZiCwSzTRZpLlBHFI1r5IQRPjdn6-KzfGwRzKNAcCzSxF3Mo0OyiRxw9IbL9mrzZDJPvY6J_TL_McHVU</recordid><startdate>20150201</startdate><enddate>20150201</enddate><creator>Khramtsov, P. P.</creator><creator>Penyazkov, O. G.</creator><creator>Shatan, I. N.</creator><general>Springer Berlin Heidelberg</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>7U5</scope><scope>8FD</scope><scope>FR3</scope><scope>H8D</scope><scope>KR7</scope><scope>L7M</scope></search><sort><creationdate>20150201</creationdate><title>Temperature measurements in an axisymmetric methane–air flame using Talbot images</title><author>Khramtsov, P. P. ; Penyazkov, O. G. ; Shatan, I. N.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c321t-d23040999396201d1ba39ebea89300bf0db82f83225a245190faeeb019bd7c463</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Axisymmetric</topic><topic>Deflection</topic><topic>Engineering</topic><topic>Engineering Fluid Dynamics</topic><topic>Engineering Thermodynamics</topic><topic>Fluid- and Aerodynamics</topic><topic>Heat and Mass Transfer</topic><topic>Mathematical analysis</topic><topic>Maxima</topic><topic>Refractive index</topic><topic>Refractivity</topic><topic>Research Article</topic><topic>Temperature distribution</topic><topic>Thermocouples</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Khramtsov, P. P.</creatorcontrib><creatorcontrib>Penyazkov, O. G.</creatorcontrib><creatorcontrib>Shatan, I. N.</creatorcontrib><collection>CrossRef</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Experiments in fluids</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Khramtsov, P. P.</au><au>Penyazkov, O. G.</au><au>Shatan, I. N.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Temperature measurements in an axisymmetric methane–air flame using Talbot images</atitle><jtitle>Experiments in fluids</jtitle><stitle>Exp Fluids</stitle><date>2015-02-01</date><risdate>2015</risdate><volume>56</volume><issue>2</issue><spage>1</spage><epage>9</epage><pages>1-9</pages><artnum>31</artnum><issn>0723-4864</issn><eissn>1432-1114</eissn><abstract>The paper discusses the principles of optical testing of transparent objects using the Talbot images method and its applicability to diagnostic of flames. The experimental study was performed for premixed methane
–
air flame formed by an axisymmetric nozzle. The local deflection angles of the probe radiation were determined from measurements of the relative displacements of intensity maxima of the Talbot image which is caused by passing of light through the flame. The Abel integral equation was solved to reconstruct the refractive index distribution in the flame. Calculation of the temperature field from the refractive index data was based on neglecting the spatial variation of the component composition. Inaccuracy of the calculations was evaluated by comparing the results with the thermocouple measurements. The results demonstrate that the Talbot images method can be used to measure the temperature distribution in axisymmetric reacting gas flows with high spatial resolution.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1007/s00348-015-1906-x</doi><tpages>9</tpages></addata></record> |
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| subjects | Axisymmetric Deflection Engineering Engineering Fluid Dynamics Engineering Thermodynamics Fluid- and Aerodynamics Heat and Mass Transfer Mathematical analysis Maxima Refractive index Refractivity Research Article Temperature distribution Thermocouples |
| title | Temperature measurements in an axisymmetric methane–air flame using Talbot images |
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