Worth, NA and Dawson, JR (2013) Tomographic reconstruction of OH* chemiluminescence in two interacting turbulent flames. Measurement Science and Technology, 24. ISSN 0957-0233Full text not available from this repository.
The tomographic reconstruction of OH* chemiluminescence was performed on two interacting turbulent premixed bluff-body stabilized flames under steady flow conditions and acoustic excitation. These measurements elucidate the complex three-dimensional (3D) vortex-flame interactions which have previously not been accessible. The experiment was performed using a single camera and intensifier, with multiple views acquired by repositioning the camera, permitting calculation of the mean and phase-averaged volumetric OH* distributions. The reconstructed flame structure and phase-averaged dynamics are compared with OH planar laser-induced fluorescence and flame surface density measurements for the first time. The volumetric data revealed that the large-scale vortex-flame structures formed along the shear layers of each flame collide when the two flames meet, resulting in complex 3D flame structures in between the two flames. With a fairly simple experimental setup, it is shown that the tomographic reconstruction of OH* chemiluminescence in forced flames is a powerful tool that can yield important physical insights into large-scale 3D flame dynamics that are important in combustion instability. © 2013 IOP Publishing Ltd.
|Uncontrolled Keywords:||tomographic reconstruction turbulent flames vortexflame interactions|
|Divisions:||Div A > Fluid Mechanics|
Div A > Energy
|Depositing User:||Cron Job|
|Date Deposited:||07 Mar 2014 11:44|
|Last Modified:||26 Jan 2015 03:07|