Выходит 12 номеров в год
ISSN Печать: 1044-5110
ISSN Онлайн: 1936-2684
Indexed in
OPTICAL PATTERNATION OF A WATER SPRAY USING STATISTICAL EXTINCTION TOMOGRAPHY
Краткое описание
Tomographic reconstruction of local liquid surface areas per unit volume in a turbulent spray using path-integrated laser transmittance measurements is reported. Path-integrated transmittances from a turbulent spray were obtained using a newly developed six-axes optical patternator. A multiaxis maximum-likelihood estimation algorithm was developed to deconvolute for the local extinction coefficients from the path-integrated transmittances. The local extinction coefficients are identical to the local liquid surface area per un it volume within the spray. The algorithm was first evaluated using synthetic path-integrated data. The algorithm successfully recovered the local extinction coefficients from the synthetic path-integrated transmittances. The algorithm was then used to obtain local liquid surface areas per unit volume from the path-integrated transmittance measurements in the spray. The path-integrated extinction measurements were also compared with mass flux data obtained using a mechanical pattemator. The results suggest that the local velocity and size distribution of the spray field is highly correlated with the local surface area density in sprays.
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Meyer Terrence R., Brear Michael, Jin Seong Ho, Gord James R., Formation and Diagnostics of Sprays in Combustion, in Handbook of Combustion, 2010. Crossref
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Muliadi Ariel R., Sojka Paul E., Sivathanu Yudaya R., Lim Jongmook, A Comparison of Phase Doppler Analyzer (Dual-PDA) and Optical Patternator Data for Twin-Fluid and Pressure-Swirl Atomizer Sprays, Journal of Fluids Engineering, 132, 6, 2010. Crossref
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Koh Hyeonseok, Kim Dongjun, Shin Sanghee, Yoon Youngbin, Spray characterization in high pressure environment using optical line patternator, Measurement Science and Technology, 17, 8, 2006. Crossref
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Kristensson Elias, Berrocal Edouard, Aldén Marcus, Extinction coefficient imaging of turbid media using dual structured laser illumination planar imaging, Optics Letters, 36, 9, 2011. Crossref
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Cho Seong-Ho, Im Ji-Hyuk, Yoon Young-Bin, Choi Seong-Man, Han Young-Min, Spray Distribution Measurement at High Ambient Pressure, Journal of the Korean Society of Visualization, 6, 1, 2008. Crossref
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Lim Jongmook, Sivathanu Yudaya, Feikema Douglas, Fan Beam Emission Tomography, 44th AIAA Aerospace Sciences Meeting and Exhibit, 2006. Crossref
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Cho Seongho, Park Gujeong, Yoon Youngbin, Dense Spray Patternation using Optical Tomography, International Journal of Aeronautical and Space Sciences, 14, 4, 2013. Crossref
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Armanini Bret Robert, McCarthy James Edward, Fuel Vaporizer Catalyst Enables Compact Aftertreatment System Packaging by Reducing Mixing Length, SAE Technical Paper Series, 1, 2010. Crossref
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Chen Longfei, Li Guangze, Ma Xiao, Lim Jongmook, Sivathanu Yudaya, A method for measuring planar Sauter mean diameter of multi-component fuel spray based on the combined statistical extinction tomography and particle imaging velocimetry, Fuel, 214, 2018. Crossref
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Sivathanu Yudaya, Lim Jongmook, Kulkarni Varun, Time-dependent line-of-sight extinction tomography for multi-hole GDI injectors, International Journal of Spray and Combustion Dynamics, 9, 3, 2017. Crossref
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Gobyzov Oleg, Ryabov Mikhail, Inzhevatkin Konstantin, Bilsky Artur, Markovich Dmitriy, Pulec J., Novosad J., Dančová P., Planar laser-induced fluorescence measurement of the angular pattern of the cone-shaped spray, EPJ Web of Conferences, 269, 2022. Crossref