Abstract
A computational method for propagation velocity of methane explosion flame was developed based on correlation coefficients of images. Images of propagating flame were captured by a high-speed camera at a very high frequency. In order to calculate the displacement between two adjacent images of flame, the correlation coefficients were utilized. By trimming the two adjacent images and computing the correlation coefficients, the actual displacement of flame was obtained, and the average velocity of flame between two images was subsequently obtained. The flame velocities at different concentrations of methane were calculated during the whole process of explosion. The results showed that explosion flame undergoes a process of acceleration, deceleration, reverse acceleration, and reverse deceleration. By comparing with the measured velocity, the relative error is found to be very tiny. The method can be used to calculate not only the velocity of flame front but also the velocity of the flame wherever it is in the pipe.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.