THEORETICAL ANALYSIS OF USING AIRFLOW TO PURGE RESIDUAL WATER IN AN INCLINED PIPE  

作　　者：沈芳 严宗毅 赵耀华 Kiyoshi Horii 

机构地区：[1]Department of Mechanics and Engineering Science, Peking University, Beijing 100871, P R China [2]Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100080, P R China [3]Shirayuri College, Tokyo, Japan

出　　处：《Applied Mathematics and Mechanics(English Edition)》2002年第6期694-702,共9页应用数学和力学（英文版）

基　　金：theNationalHighCapabilityCalculationFoundationofChina ( 981 0 0 6)

摘　　要：A refined theoretical analysis for using the spiral airflow and axial airflow to purge residual water in an inclined pipe was presented. The computations reveal that, in most cases, the spiral flow can purge the residual water in the inclined pipe indeed while the axial flow may induce back flow of the water, just as predicted in the experiments presented by Horii and Zhao et al. In addition, the effects of various initial conditions on water purging were studied in detail for both the spiral and axial flow cases.A refined theoretical analysis for using the spiral airflow and axial airflow to purge residual water in an inclined pipe was presented. The computations reveal that, in most cases, the spiral flow can purge the residual water in the inclined pipe indeed while the axial flow may induce back flow of the water, just as predicted in the experiments presented by Horii and Zhao et al. In addition, the effects of various initial conditions on water purging were studied in detail for both the spiral and axial flow cases.

关 键 词：spiral flow axial flow water purging two-phase flow pipe flow 

分 类 号：O368[理学—流体力学]