Steps to speed up a hybrid flame surface edging proceddure
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We have developed a faster method for determining the flame edge for flames. Current experiments aim to understand the structure of flames and their burning rate. Numerical DNS work in collaboration with Newcastle University, and funded by EPSRC. O. Chaib, Y. Zheng, S. Hochgreb, and I. Boxx, “Hybrid algorithm for the detection of turbulent flame fronts”, Exp Fluids (2023) 64: 104 |
Spherical flame isosurface coloured by local curvature (insets)
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In this paper we for the first time determined 3D curvatures of spherically expanding flames. We also showed that 2D curvatures are poor representations for 3D values. Y Zheng, P Ahmed, S Hochgreb. 3D flame surface curvature analysis from reconstructed scanning across spherical expanding flames. Proceedings of the Combustion Institute 40 (1-4), 105688 |
3D reconstructed scans of Bunsen flame
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The problem of measuring and computing the turbulent flame speeds and reaction rates of arbitrary flames is still not resolved. We explore the small scale range of turbulent flames via envelope turbulent flames, by measuring their structure and local flame speed. In recent experiments we have explored the use of Opto-Acoustic Deflection (AOD) devices to scan the structure of low turbulence flames and their reconstruction. 3D flame surface measurements in low-turbulence Bunsen flames via scanning and orthogonal cross-planar techniques (2023) Y Zheng, L Weller, S Hochgreb. Combustion and Flame 258, 113103. |
Spherical flame isosurface
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These are the first 3D measurements of a Bunsen flame surface using scanning laser sheet, performed at Leeds University. 3D flame surface measurements in low-turbulence Bunsen flames via scanning and orthogonal cross-planar techniques (2023) Y Zheng, L Weller, S Hochgreb. Combustion and Flame 258, 113103 |
