Determination of Stretch-Corrected Laminar Burning Velocity and Selection of Accurate Analytical Model for Burned Gas Mass Fraction Using Constant Volume Method

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Determination of Stretch-Corrected Laminar Burning Velocity and Selection of Accurate Analytical Model for Burned Gas Mass Fraction Using Constant Volume Method

Singh, Anup / Jangir, Vikas / Ray, Anjan / Ravi, M. R.

Constant volume method of determining laminar burning velocity suffers from the limitation that correction for flame stretch of such flames is difficult. For this reason, the constant pressure method is more widely accepted as an accurate method for determination of laminar burning velocity and not constant volume method. In the present work, a stretch correction method has been proposed to get the unstretched laminar burning velocity by carrying out numerical simulations for combustion in a constant volume bomb using a constant volume method. Also, three analytical models for burned gas mass fraction have been assessed by comparing them with numerical results to select the most accurate analytical model to relate burned gas mass fraction to pressure. Unstretched laminar burning velocity of CH₄–air mixture at pressures up to 4 bar has been obtained using constant volume method, and the results have been validated against literature. Luijten’s model for burned gas mass fraction was found to be the most accurate amongst the ones investigated.

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Title :

Determination of Stretch-Corrected Laminar Burning Velocity and Selection of Accurate Analytical Model for Burned Gas Mass Fraction Using Constant Volume Method

Additional title:

Lect.Notes Mechanical Engineering

Contributors:

Gupta, Ashwani K. (editor) / Mongia, Hukam C. (editor) / Chandna, Pankaj (editor) / Sachdeva, Gulshan (editor) / Singh, Anup (author) / Jangir, Vikas (author) / Ray, Anjan (author) / Ravi, M. R. (author)

Conference:

National Conference on IC Engines and Combustion ; 2019 ; Kurukshetra, India November 01, 2019 - November 04, 2019

Published in:

Advances in IC Engines and Combustion Technology ; Chapter : 64 ; 841-852

Lecture Notes in Mechanical Engineering

Publication date :

2020-08-19

Size :

12 pages

ISBN :

978-981-15-5996-9 , 978-981-15-5995-2

ISSN :