Quantitative three-dimensional imaging of soot volume fraction in turbulent non-premixed flames |
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Authors: | J Hult A Omrane J Nygren C Kaminski B Axelsson R Collin P-E Bengtsson M Aldén |
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Institution: | Department of Combustion Physics, Lund Institute of Technology, PO Box 118, 221?00 Lund, Sweden,
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Abstract: | A three-dimensional (3-D) imaging system for studies of reactive and non-reactive flows is described. It can be used to reveal the topology of turbulent structures and to extract 3-D quantities, such as concentration gradients. Measurements are performed using a high repetition rate laser and detector system in combination with a scanning mirror. In this study, the system is used for laser-induced incandescence measurements to obtain quantitative 3-D soot volume fraction distributions in both laminar and turbulent non-premixed flames. From the acquired data, iso-concentration surfaces are visualised and concentration gradients calculated. |
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