西南石油大学学报(自然科学版) ›› 2009, Vol. 31 ›› Issue (4): 180-183.DOI: 10.3863/j.issn.1674-5086.2009.04.040

• 博导论评 • Previous Articles     Next Articles

SIMULATIVE EMULATION OF DEFLAGRATION IN WELL BLOW-OUT BASED ON CFD

AI Zhi-jiu1 WU Guang-wu2 WANG Qi-hua3 LEI Wen-zhang1,3 DING Shu-cheng3   

  1. 1.College of mechanical and electrical engineering，Southwest Petroleum University,Sichuan chengdu 610500，China；2.Research Center of China National Offshore Oil corporation,Beijing 100027，China;3.Institute of safety and environmental protection,Petro China,Beijing 100027,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-08-20 Published:2009-08-20

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Abstract: In order to acquire a mathematical model which can be adapted to unrestricted flammable vapor cloud deflagration，the research on vapor cloud explosion together with the diffusion calculation is carried out.In this paper，computational fluid dynamics method based on simulating the vapor cloud diffusion and deflagration calculation is used.The optimal ignition region is obtained by comparing the results of deflagration pressure and temperature varying with time which are ignited in different fuel concentration.The results of calculation are well in agreement with experimental data，it can be used to predict the hazard-range of vapor cloud explosion and determine the optimal ignition region.

Key words: well blow-out, vapor cloud, deflagration, CFD, emulation

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