常州大学学报（自然科学版）2026，Vol.38Issue(3)：27-33,81,8.DOI:10.3969/j.issn.2095-0411.2026.03.004
气体管道射流清管器运动特性研究
Investigation on the kinetic characteristics of bypass pig in gas pipelines
摘要
Abstract
Regarding the velocity fluctuation of bypass pig in gas pipelines,the unstable bypass pig ve-locity was theoretically analyzed through mathematical modeling and numerical simulations.Then,a transparent experimental pipeline was designed to study the unsteady motion of bypass pig.The com-parison between experiments and simulations indicates that the unstable motion of bypass pig is influ-enced by gas compressibility and friction between bypass pig and the pipe inner wall.Specifically,the gas compressibility mainly determines the initial stoppage,the initial start process,and the velocity fluctuation of bypass pig,while the friction usually determines bypass pig speed after reaching steady motion.In addition,bypass pig may experience a stop-restart process when entering an abnormal friction area.When bypass pig enters the higher friction area,this stop-restart process appears as a deceleration-stop-restart process dominated by friction.However,when entering the lower friction ar-ea,it appears as an acceleration-fluctuation-stop-restart process influenced by gas compressibility.关键词
射流清管器/不稳定运动/气体可压缩性/摩擦力Key words
bypass pig/unsteady motion/gas compressibility/friction分类
矿业与冶金引用本文复制引用
李晓伟,夏鸣宇,周诗岽,何利民,吕宇玲,吕晓方..气体管道射流清管器运动特性研究[J].常州大学学报（自然科学版）,2026,38(3):27-33,81,8.基金项目
中国博士后科学基金资助项目(2025M784523) （2025M784523）
江苏省基础研究计划资助项目(BK20250965). （BK20250965）
