Abstract
This study is made to attempt to establish a prediction model of turbulent burning velocity for hydrogen mixtures based on the mean local burning velocity estimated by taking the preferential diffusion into consideration S_L, instead of the laminar burning velocity S_<LO>. The S_L is estimated for the specific mixtures having the same S_<LO> by adding nitrogen to hydrogen-air mixtures, where S_<LO> as well as the equivalence ratio are varied extensively, in order to confirm the effect of u'/S_<LO>. It is found that accuracy of the proposed simple mode can be improved by using S_L with respect to u'/S_<LO>.
