Three Dimensional Reconstruction of High-Speed Premixed Flames with Three Dimensional Computer Tomography 20-Directional Quantitative Schlieren Camera by Instantaneous Density Distribution
Keywords:
Schlieren, Three dimensional (3D) measurement, Premixed flame, Turbulent flame, 3D printingAbstract
To observe unsteady high speed turbulent flames in 3D (three dimensional), application of non-scanning 3D-CT (Three Dimensional Computer Tomography) using multi-directional quantitative schlieren system on instantaneous density distribution of premixed flames is proposed. Inpresent study, this schlieren imaging system uses flash light as light source. This 3D-CT Schlieren system simultaneously shot the images from 20 directions at the same time and a CT algorithm is used for the 3D-CT reconstruction of the images obtained from the schlieren photography. In this paper, 3D-CT reconstruction of instantaneous density distribution of a high speed turbulent flames of exit velocities of 8.0 m/s and 10.0 m/s on burner nozzle diameter of 4.2 mm, and exit velocity of 8.0 m/s on burner nozzle diameter of 10 mm has been succesfully obtained. A 3D model of burner nozzle diameter of 4.2 with velocity of 10 m/s has also been successfully constructed