Abstract
With the development of compression ignition (CI) engines, a detailed investigation of the in-cylinder combustion process is needed under strengthened regulation on the emission. The development of a tomographic algorithm makes it possible for further investigation of the 3D structure of the in-cylinder flame. In this study, the Full-field Cross-Interfaces Computed Tomography algorithm (FCICT) is utilized to reconstruct the 3D chemiluminescence distribution of the in-cylinder flame in an optical engine. The reconstructed flame provides 3D information on exhibiting flame equivalence radius variation, as well as clarifying the effect of injection pressure on flame development. The study reveals the 3D structure of the in-cylinder flame and makes it possible for further investigation of the 3D information of the in-cylinder combustion process in the future.
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