Proceedings Vol. 20 (2014)
ENGINEERING MECHANICS 2014
May 12 – 15, 2014, Svratka, Czech Republic
Copyright © 2014 Brno University of Technology Institute of Solid Mechanics, Mechatronics and Biomechanics
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)
list of papers scientific commitee
pages 741 - 744, full text
Flame tracking is important in the study of flame-wall interaction. Based on flame area, stretch angle and flame thickness the wall effect on the flame can be evaluated. The proposed tracking method is based on differences in seeding particle density in unburnt and burnt gases. Particle images are recorded with a high-speed Particle Image Velocimetry (PIV) system that consists of a high speed CMOS camera and high-repetition rate, diode-pumped Nd:YLF laser. The instantaneous flame front is recognizable in the raw PIV images and the key task is to detect it automatically with image processing tools. Interaction with the wall and an unexpected shift of the wall position during the measurements (due to heating) makes this task very challenging. This paper presents a procedure for entire flame front tracking which utilizes generally available image processing tools. Several issues in the measurement of the flame front are highlighted and their solution or elimination is proposed.
back to list of papers
Text and facts may be copied and used freely, but credit should be given to these Proceedings.
All papers were reviewed by members of the scientific committee.