Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Explosion and Shock Waves》 2018-05
Add to Favorite Get Latest Update

A model of gaseous deflagration flame propagation outside the open end of a short duct

DU Yang;QI Sheng;LI Guoqing;WANG Shimao;LI Yangchao;Department of Oil,Army Logistics University of PLA;Chongqing Key Laboratory of Fire and Explosion Safety,Army Logistics University of PLA;  
Aiming at the flame propagation problem of gas deflagration in a short tube with one end closed and the other end open,by referring to the flame propagation model proposed by Clanet,et al and Bychkov,et al,and under the condition of adiabatic and incompressible assumption,a mathematical model of flammable gas distribution and flame front propagation was obtained. By using gasoline vapor as experimental working substance,deflagration experiment was carried out based on a fully transparent experimental pipeline. The proposed model was validated by high-speed photography and schlieren images. Results show that under the condition of length-diameter ratios 4 ∶ 1 to 10 ∶ 1,this model can predict accurately the flammable gas interface position and flame front position in the flow field outside the open end. Above results extend the original theory to outside field calculation,and have certain application value in flammable gas explosion protection and safety design.
【Fund】: 国家自然科学基金项目(51276195);; 重庆市研究生创新项目(CYB15127)
【CateGory Index】: O643.2
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved