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1、Seediscussions,stats,andauthorprofilesforthispublicationat:https://www.researchgate.net/publication/294833478Numericalsimulationongasflowthroughcoalseambasedondigitalimage-basedtechniqueArticle·January2009CITATIONSREADS6385authors,including:WanchengZhuTong-
2、HuaYangNortheasternUniversity(Shenyang,China)158PUBLICATIONS1,338CITATIONS174PUBLICATIONS2,051CITATIONSSEEPROFILESEEPROFILEChenhuiWeiNortheasternUniversity(Shenyang,China)48PUBLICATIONS277CITATIONSSEEPROFILESomeoftheauthorsofthispublicationarealsoworkingon
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4、edfile.第34卷第1期煤炭学报Vol.34No.12009年1月JOURNALOFCHINACOALSOCIETYJan.2009文章编号:0253-9993(2009)01-0018-06基于数字图像处理技术的煤层瓦斯渗流过程数值模拟11221朱万成,杨天鸿,霍中刚,姜文忠,魏晨慧(11东北大学采矿工程辽宁省重点实验室,辽宁沈阳110004;21煤炭科学研究总院抚顺研究院,辽宁抚顺113001)摘要:在考虑克林肯伯格(Klinkenberg)效应、瓦斯解吸效应以及煤层压缩性对于煤层渗透性影响的基础上
5、,提出煤层瓦斯运移的气-固耦合方程.利用基于数字图像的技术进行煤体非均匀结构特征的数值表征,通过数值分析研究了煤层内部结构对于瓦斯运移规律的影响,探讨煤层孔隙结构的非均匀性对于瓦斯运移过程的控制机制.研究表明,基于数字图像的技术是进行煤体的非均匀性表征的一个手段;克林肯伯格(Klinkenberg)效应、瓦斯解吸效应和煤层的骨架受力变形都是控制瓦斯运移的重要因素.关键词:数字图像处理技术;瓦斯渗流;克林肯伯格效应;吸附解吸;渗透率;数值模拟中图分类号:TD71212文献标识码:ANumericalsimul
6、ationongasflowthroughcoalseambasedondigitalimage2basedtechnique11221ZHUWan2cheng,YANGTian2hong,HUOZhong2gang,JIANGWen2zhong,WEIChen2hui(11KeyLaboratoryofMiningEngineeringofLiaoningProvince,NortheasternUniversity,Shenyang110004,China;21FushunResearchInstitu
7、te,ChinaCoalResearchInstitute,Fushun113001,China)Abstract:ByconsideringtheeffectofKlinkenbergeffectaswellastheabsorptionanddesorptionprocessonthegaspermeability,agas2solidcoupledequationofgasflowwasproposed.Thegasflowincoalspecimenwasnumeri2callystudiedwhe
8、nthedigitalimage2basedtechniquewasemployedtocharacterizetheheterogeneityofthecoalseam,andtheassociatedmechanismgoverningcomplexgasflowduetoheterogeneousstructuralcharacteristicsofcoalseamwasclarified.Thenumer
