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Measurement of temperature and velocity fluctuations in a turbulent diffusion flame by an optical fiber thermometer and a laser 2-focus velocimeter
http://hdl.handle.net/10069/22941
http://hdl.handle.net/10069/229414e38d6e0-46b9-4fdc-880e-b217d1cbd18b
名前 / ファイル | ライセンス | アクション |
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SPIE3172_362.pdf (794.9 kB)
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Item type | 会議発表論文 / Conference Paper(1) | |||||
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公開日 | 2010-02-17 | |||||
タイトル | ||||||
タイトル | Measurement of temperature and velocity fluctuations in a turbulent diffusion flame by an optical fiber thermometer and a laser 2-focus velocimeter | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Diffusion flame | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Fluctuation | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Soot | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Spectrum | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Temperature | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Velocity | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||
資源タイプ | conference paper | |||||
著者 |
Ueki, Hironobu
× Ueki, Hironobu× Ishida, Masahiro× Sakaguchi, Daisaku |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Both fluctuations of local velocity and local temperature were measured in a steady turbulent diffusion flame of propane by using the semiconductor laser 2-focus velocimeter (L2F) and the optical fiber thermometer (OFT) respectively. The flame temperature and the soot particle density were calculated by applying the infrared two-color method to the measured radiant energy from the soot particles in the flame. In the analysis of the frequency power spectra of temperature and velocity fluctuations, the correlation-based slotting technique was adopted for those data with the nonuniform time interval. It is shown that the time mean value and the fluctuation of the flame temperature decrease gradually toward downstream in the luminous flame region, and those of the soot density increase due to decay of turbulence along the flame axis. On the other hand, both time mean and fluctuation of the flame temperature increase in the radial direction from the center to the periphery due to the effect of air entrainment marked in the peripheral region of the flame. Furthermore, the power spectrum of the velocity fluctuation is not always the same as that of the temperature fluctuation in the flame center. | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Optical Technology in Fluid, Thermal, and Combustion Flow III : San Diego, CA, USA, Monday 28 July 1997 | |||||
書誌情報 |
Proceedings of SPIE 巻 3172, p. 360-369, 発行日 1997-07 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0277786X | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10619755 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1117/12.279746 | |||||
権利 | ||||||
権利情報 | ©1997 COPYRIGHT SPIE--The International Society for Optical Engineering. | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
出版者 | ||||||
出版者 | SPIE | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Proceedings of SPIE, 3172, pp.360-369; 1997 |