Date of Publication:2022-10-06

Journal:石油化工设备

Affiliation of Author(s):化工学院

Issue:5

Page Number:1-3,4

ISSN No.:1000-7466

Abstract:In order to study deflagration propagation situation in pipe with different inner wall structures ,the mathematical models of flame propagation in empty pipe ,pipe of porous material liner ,pipe of entity obstacle liner are built .The effect of the different inner wall structures on the flame and the pressure wave are studied .The results show that when the flame reaches at the outlet section of liner channel ,the propagation velocity of flame in pipe of entity obstacle is the fastest ,while the empty pipe takes the second ,the pipe of porous material is the most slowly . The porous material has weakening effect on the flame temperature and pressure ,the flame tem-perature and pressure decrease significantly after the flame crosses the channel of porous material liner ,while the entity obstacle has the strengthening effect and promotes the propagation of flame .

Note:新增回溯数据