水素噴流拡散中での強制着火による火炎の成長・消滅の過程

抄録

This paper deals with the simulations of hydrogen release from the storage to ambient through the release orifice 1.91mm opening. In this study, the numerical simulations were compared with an experiment implemented by Schefer et al. using Reynolds stress model. Based on the finding, the numerical results and the experiment results about distribution of time averaged hydrogen concentration have qualitatively similar features. Also, it is clarified that axial hydrogen concentration have an agreement, compared between the numerical results and the experiment results. In addition, we put high temperature region at ignition region forced ignition indicated by Schefer et al. As the results, a flame kernel is formed and extinct to drift towards downstream.