%0 Journal Article %1 0957-0233-24-2-024013 %A Worth, Nicholas A %A Dawson, James R %D 2013 %J Measurement Science and Technology %K dawson reconstruction tomographic worth %N 2 %P 024013 %T Tomographic reconstruction of OH* chemiluminescence in two interacting turbulent flames %U http://stacks.iop.org/0957-0233/24/i=2/a=024013 %V 24 %X 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.

@article{0957-0233-24-2-024013, abstract = {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.}, added-at = {2013-07-01T13:14:26.000+0200}, author = {Worth, Nicholas A and Dawson, James R}, biburl = {https://www.bibsonomy.org/bibtex/23b7f7c0c3c4b0ca4055187fa3beebf08/adisaurabh}, description = {Tomographic reconstruction of OH* chemiluminescence in two interacting turbulent flames - Abstract - Measurement Science and Technology - IOPscience}, interhash = {522bf6f82bf77eaa3d74e4679af44eb3}, intrahash = {3b7f7c0c3c4b0ca4055187fa3beebf08}, journal = {Measurement Science and Technology}, keywords = {dawson reconstruction tomographic worth}, number = 2, pages = 024013, timestamp = {2013-07-01T13:14:26.000+0200}, title = {Tomographic reconstruction of OH* chemiluminescence in two interacting turbulent flames}, url = {http://stacks.iop.org/0957-0233/24/i=2/a=024013}, volume = 24, year = 2013 }