Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : October 20, 2018 - October 21, 2018
This paper discusses diffusive-thermal modeling of premixed-flame propagation with a particular focus on the accuracy of the Kuramoto-Sivashinsky (KS) equation. Numerical solutions of a two-dimensional diffusive-thermal system are compared with those of the corresponding KS equation at various values of a reduced Lewis number, α = β(1 - Le)/2, where β is the Zel'dovich number, and Le the Lewis number. It is found that discrepancy between the two models increases with increasing α. This is an expected result because the KS equation is formally obtained by taking the limit of α → 1.
