Three-dimensionalnumericalsimulationofgascloudexplosion

inducedbywellblowout

AI Zhi-jiu; WU Guang-wu; WANG Qi-hua; LEI Wen-zhang; CHEN Gao-song

doi:10.11883/1001-1455(2010)01-0096-05

Volume 30 Issue 1

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AI Zhi-jiu, WU Guang-wu, WANG Qi-hua, LEI Wen-zhang, CHEN Gao-song. Three-dimensionalnumericalsimulationofgascloudexplosioninducedbywellblowout[J]. Explosion And Shock Waves, 2010, 30(1): 96-100. doi: 10.11883/1001-1455(2010)01-0096-05

Citation:

AI Zhi-jiu, WU Guang-wu, WANG Qi-hua, LEI Wen-zhang, CHEN Gao-song. Three-dimensionalnumericalsimulationofgascloudexplosion inducedbywellblowout[J]. Explosion And Shock Waves, 2010, 30(1): 96-100. doi: 10.11883/1001-1455(2010)01-0096-05

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Three-dimensionalnumericalsimulationofgascloudexplosion inducedbywellblowout

doi: 10.11883/1001-1455(2010)01-0096-05

1.
SouthwestPetroleum University,Chengdu610500,Sichuan,China;
2.
ChinaNationalOffshoreOilCorporationResearchInstitute,Beijing100027,China;
3.
ResearchInstituteofSafetyandEnvironmentTechnology,

Funds:

ChinaNationalPetroleumCorporation(06B7101)

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Corresponding author: AI Zhi-jiu
Publish Date: 2010-01-25

Abstract

Abstract

BasedontheK- modelandtheimprovededdybreak-up(EBU)model,anewtheoretical modelwasestablishedtodescribethemethanejetdiffusioninducedbywellblowoutandthemethaneaircloudexplosion. Andthemethane-airclouddiffusionwasconsideredinthenew model.Byusing thenew model,theSIMPLEalgorithm wasadoptedtosolvedifferentialequations.Theformation processofthemethane-aircloudwasnumericallysimulatedtoinvestigatetheeffectsofdifferentignitionsonthemixturecloudexplosion. Theresultsshowthattheignitionlocationsandthegascloud concentrationsattheignitionpointscanaffectmarkedlythegascloudexplosion.Thenearertheignitionpointawayfromthegascloudcenterandthehigherthegasconcentrationattheignitionpoint, themoreintenselythegascloudexplodes.
- fluidmechanics|explosioneffect|eddybreak-up(EBU)model|wellblowout,
- gascloud| ignition,