Three-dimensional Visualization of Diffusion Flame Shapes under Acoustic Excitation Using Stereoscopic Imaging and Reconstruction Technique

  • Authors:

  • W. B. Ng;A. F. Salem;Y. Zhang

  • Affiliations:

  • Mechanical, Aerospace and Manufacturing Engineering Department, PO Box 88, University of Manchester Institute of Science and Technology, Manchester M60 1QD, United Kingdom. E-mail: wen.ng@umist.ac ...;Mechanical, Aerospace and Manufacturing Engineering Department, PO Box 88, University of Manchester Institute of Science and Technology, Manchester M60 1QD, United Kingdom. E-mail: yz100@umist.ac. ...;Mechanical, Aerospace and Manufacturing Engineering Department, PO Box 88, University of Manchester Institute of Science and Technology, Manchester M60 1QD, United Kingdom. E-mail: yz100@umist.ac. ...

  • Venue:
  • Journal of Visualization
  • Year:
  • 2003

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Abstract

Stereoscopic imaging and reconstruction technique is introduced to reconstruct the flame structures that are subject to acoustic excitation. The laminar diffusion flame under investigation was created in a cylindrical tube and excited by a loudspeaker. Stereo images were taken at a shutter speed of 1/10000 th second using a 'stereo camera' and the depth cue of the flame structures along the camera viewing direction were then computed using machine vision methodology. By visualizing the computed three-dimensional flame models, as well as judging the corresponding attribute such as surface gradient, the understanding of the flame and acoustic wave interaction could be improved.