期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 38, 期 10, 页码 4185-4193出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2013.01.111
关键词
Shock wave - boundary layer interaction; DDT; Fast flame; Auto-ignition
Detonation research started just at the beginning of 1880s, but its generation mechanism is still a mystery and has not been explained in details yet. Many experimental research in the early 1900s reported that detonation is generated by a transition from deflagration, later known as deflagration-to-detonation transition (DDT). A high performance laser allowing to see a detailed phenomenon was developed later. However, even with nowadays experimental techniques a detailed view on detonation initiation cannot be provided. The present work shows for the first time in details that shock wave - boundary layer interactions are the key for an auto-ignition in the boundary layer in a smooth tube. From that process of the auto-ignition a new flame is developed and propagate along the wall with a sound speed, turns into a fast flame, and trigger DDT finally. The most important factors for the process of the auto-ignition in the boundary layer are thermodynamic interactions in the boundary layer and the induction time. Copyright (c) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据