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Quantitative three-dimensional imaging of soot volume fraction in turbulent non-premixed flames

Hult, J; Omrane, A; Nygren, J; Kaminski, CF; Axelsson, B; Collin, R; Bengtsson, PE; Alden, M,"Quantitative three-dimensional imaging of soot volume fraction in turbulent non-premixed flames", EXPERIMENTS IN FLUIDS 33:265-269(2002), DOI:10.1007/s00348-002-0410-2, | pdf


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 laserinduced 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.