Article(id=1242119680945619685, tenantId=1146029695717560320, journalId=1146031591421210625, issueId=1242119672376656598, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1257350400000, receivedDateStr=2009-11-05, revisedDate=1265212800000, revisedDateStr=2010-02-04, acceptedDate=null, acceptedDateStr=null, onlineDate=1268409600000, onlineDateStr=2010-03-13, pubDate=1268409600000, pubDateStr=2010-03-13, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1268409600000, onlineIssueDateStr=2010-03-13, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1774074009402, creator=sys-migrate, updateTime=1774074009402, updator=sys-migrate, issue=Issue{id=1242119672376656598, tenantId=1146029695717560320, journalId=1146031591421210625, year='2010', volume='28', issue='05', pageStart='2', pageEnd='139', issueExtLink='null', onlineDate='null', pubDate='1268409600000', pubDateStr='2010-03-13', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=3, issueType=-1, specialIssue=null, createTime=1774074007359, creator='sys-migrate', updateTime=1774074007359, updator='sys-migrate', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=45, endPage=48, ext={EN=ArticleExt(id=1242119685190255355, articleId=1242119680945619685, tenantId=1146029695717560320, journalId=1146031591421210625, language=EN, title=Effect of Cylindrical Confined Space Size on Fire Induced Smoke Flow, columnId=1242116080374710456, journalTitle=Science & Technology Review, columnName=Articles, runingTitle=null, highlight=null, articleAbstract=This paper discusses the geometry characteristics of the fire-induced smoke flow in cylindrical confined spaces. Due to the confined nature of the vaulted ceiling, the smoke moves down along the wall and close to the fire source, with a sedimentation rate greater in upper side of the fire source than that around the fire. LES and mixture fraction numerical methods are used to simulate the smoke movement in cross sectional confined spaces. The results well validate the forecast of the flow course. Smoke temperature distributions with transverse size of 6.4m and longitudinal size of 6m, 9m, and 12m are compared. The results show that as the longitudinal size increases, the temperature at places under 2cm and D/4 of the top in the spaces is obviously reduced, meanwhile, the temperature at the top delays its time to reach the maximum value. The smoke temperature distributions in cylindrical spaces with longitudinal size of 12m and transverse size of 3.2m, 6.4m and 9.2m are compared. The results show that as the transverse size increases, the temperature at places under 2cm and D/4 of the top in the space is also obviously reduced. When the transverse size decreases to 3.2m, the oxygen concentration is too low to sustain the fire source combustion, about 160s later, the combustion stops. The reduction of the transverse size will restrict the combustion of the fire source, and quickly reduce the heat release rate, then reduce the fire danger., authors=null, authorsList=null, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=GDH7XUk+gAguqrNH5E/HDw==, pdfFileSize=1824092, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1242119684259119860, articleId=1242119680945619685, tenantId=1146029695717560320, journalId=1146031591421210625, language=CN, title=横纵向尺度对圆柱形密闭空间火烟流影响分析, columnId=1146540929516700224, journalTitle=科技导报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=分析了圆柱形密闭空间内火驱动烟气流动的几何特征。由于顶蓬的拱形形状限制，烟流既沿着顶蓬倾斜向下运动，还将向火区中心水平流动，使得火区上方的烟气沉降速度要较两侧明显加快。采用大涡模拟和混合分数方法，对圆形横截面密闭空间火灾进行数值分析，计算结果验证了圆柱形密闭空间内烟流的几何预测。通过对横向尺寸为6.4m,纵向尺度分别为6m、9m、12m的圆柱形空间火灾烟气温度分布比较，表明随着纵向尺度的增加，受限空间内顶蓬下2cm和顶蓬下D/4处温度值显著下降，且延迟了顶蓬处达到温度最大值的时间。通过对纵向尺度为12m，横向尺度分别为3.2m、6.4m、9.2m的圆柱形空间温度分布比较，表明随着横向尺度的增加，顶棚下2cm和顶蓬下D/4处温度温度同样明显下降，并当横截面尺度为3.2m时，使得受限空间内氧气含量不足，约 160s时火源停止了燃烧。横截面尺度的缩小将限制火源的持续燃烧，使火源热释放速率迅速下降，显著降低火场的危害性。, authors=王 磊, 浦金云, authorsList=王 磊;浦金云, authorCompany=海军工程大学船舶与动力学院，武汉 430033, correspAuthors=null, authorNote=null, correspAuthorsNote=王磊, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=K0MBOM7i3ap7gbxx+8w+GA==, pdfFileSize=1824092, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null)}, 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