TY - JOUR
T1 - Numerical and experimental validation of a three-dimensional combustion diagnostic based on tomographic chemiluminescence
AU - Cai, Weiwei
AU - Li, Xuesong
AU - Li, Fei
AU - Ma, Lin
PY - 2013/3/25
Y1 - 2013/3/25
N2 - Three-dimensional (3D) measurements are highly desirable both for fundamental combustion research and practical monitoring and control of combustion systems. This work discusses a 3D diagnostic based on tomographic chemiluminescence (TC) to address this measurement need. The major contributions of this work are threefold. First, a hybrid algorithm is developed to solve the 3D TC problem. The algorithm was demonstrated in extensive tests, both numerical and experimental, to yield 3D reconstruction with high fidelity. Second, an experimental approach was designed to enable quantifiable metrics for examining key aspects of the 3D TC technique, including its spatial resolution and reconstruction accuracy. Third, based on the reconstruction algorithm and experimental results, we investigated the effects of the view orientations. The results suggested that for an unknown flame, it is better to use projections measured from random orientations than restricted orientations (e.g., coplanar orientations). These findings are expected to provide insights to the fundamental capabilities of the TC technique, and also to facilitate its practical application.
AB - Three-dimensional (3D) measurements are highly desirable both for fundamental combustion research and practical monitoring and control of combustion systems. This work discusses a 3D diagnostic based on tomographic chemiluminescence (TC) to address this measurement need. The major contributions of this work are threefold. First, a hybrid algorithm is developed to solve the 3D TC problem. The algorithm was demonstrated in extensive tests, both numerical and experimental, to yield 3D reconstruction with high fidelity. Second, an experimental approach was designed to enable quantifiable metrics for examining key aspects of the 3D TC technique, including its spatial resolution and reconstruction accuracy. Third, based on the reconstruction algorithm and experimental results, we investigated the effects of the view orientations. The results suggested that for an unknown flame, it is better to use projections measured from random orientations than restricted orientations (e.g., coplanar orientations). These findings are expected to provide insights to the fundamental capabilities of the TC technique, and also to facilitate its practical application.
UR - http://www.scopus.com/inward/record.url?scp=84875739686&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84875739686&partnerID=8YFLogxK
U2 - 10.1364/OE.21.007050
DO - 10.1364/OE.21.007050
M3 - Article
C2 - 23546088
AN - SCOPUS:84875739686
SN - 1094-4087
VL - 21
SP - 7050
EP - 7064
JO - Optics Express
JF - Optics Express
IS - 6
ER -