| 分层流与环状流中聚合物减阻效应研究 |
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| 引用本文： | 刘磊,孙贺东,钱焕群,周芳德.分层流与环状流中聚合物减阻效应研究[J].工程热物理学报,2003,24(3):441-444. |
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| 作者姓名： | 刘磊 孙贺东 钱焕群 周芳德 |
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| 作者单位： | 西安交通大学动力工程多相流国家重点实验室,陕西,西安,710049 |
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| 基金项目： | 国家自然科学基金项目资助(No.50206016)，教育部留学回国人员启动基金项目资助 |
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| 摘 要： | 对天然气管道在多相流状态下的管道效率与减阻率的关系进行了理论分析,以水-空气混合流体模拟天然气管道中的分层流与环状流,在65 mm的水平管中对聚合物的多相流减阻进行了试验研究。理论计算与试验结果都表明,聚合物对多相流的减阻率随表观气速的增大而略有降低;对液体有62％减阻率的聚合物,对环状流的减阻率可达到40％左右,对分层流的减阻率可达到26％左右,使多相流的管道效率明显提高。
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| 关 键 词： | 气体-液体流动 多相流 聚合物 减阻 |
| 文章编号： | 0253-231X(2003)03-0441-04 |
| 修稿时间： | 2002年12月8日 |
DRAG REDUCTION INDUCED BY POLYMER IN STRATIFIED AND ANNULAR FLOWS |
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| LIU Lei SUN He-Dong QIAN Huan-Qun ZHOU Fang-De.DRAG REDUCTION INDUCED BY POLYMER IN STRATIFIED AND ANNULAR FLOWS[J].Journal of Engineering Thermophysics,2003,24(3):441-444. |
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| Authors: | LIU Lei SUN He-Dong QIAN Huan-Qun ZHOU Fang-De |
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| Abstract: | Theoretical analysis was carried out on the relationship between drag reduction and transmission efficiency for gas multiphase pipeline. Drag reductions induced by polymer in stratified and annular flows were experimentally investigated in a horizontal pipe with diameter of 65 mm, by simulating multiphase transportation with air and water. It is found that the drag reduction induced by polymer decreases with the increase of superficial gas velocity for both stratified flow and annular flow. While, drag reduction can be up to 26% and 40% for stratified flow and annular flow, respectively. This indicates that polymer can bring apparently the multiphase pipeline efficiency to be arise. |
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| Keywords: | gas-liquid flow multiphase flow polymer drag reduction |
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