摘要
以冻土区埋地输油管道泄漏污染物为研究对象,考虑冻土环境对泄漏污染物在土壤中迁移的影响,建立了埋地输油管道泄漏污染物多相传热传质过程的迁移数理模型,采用有限体积法对该模型进行离散和求解,分析了冻土对其迁移过程的影响。研究结果表明:冻土对温度场的影响(分流头区域、发展区域、稳定区域三个阶段);冻土对多相流分布的影响。
Takingcontaminants leaked fromburied oil pipelinesin permafrost regionsasresearch object,taking into account theeffectof frozen soil environmentoncontaminanttransportin soil,theheat and mass transfer mathematical model ofcontaminant transportprocessduring leakage of buried oil pipelineswas established,then themodel was discretizedandsolved bythefinite volume elementmethod, effectof permafrost on the migration processwas analyzed.Theresults showthat： effects ofthepermafrost environment on the temperature field can be divided into the stream head area stage, the regional stageof development and the stability region stage; themedium phase changein thefrozensoilhasless impact on heat transferduringthe pipeline leakage;thepermafrostdoes not change the viscosity of fluidand the multi-phase flow distributioncan beless affected.
出处
《当代化工》
CAS
2014年第10期2149-2152,2155,共5页
Contemporary Chemical Industry
基金
国家自然科学基金(No.51274071)
关键词
埋地输油管道
泄漏污染物
冻土
迁移
Buried pipelines
Leaking contaminants
Permafrost regions
Migration
