下降-上昇傾斜管のV字部において発生する液体スラグの特性(流体工学,流体機械)

概要

論文の詳細を見る
Liquid slugs in petroleum pipelines in hilly terrain are mainly generated at V-shaped elbows and induce high pressure fluctuation. The slug characteristics generated at elbows such as slug frequency, slug velocity and length are therefore required for the design of pipelines. In this study, we measured the velocity, length and frequency of liquid slug generated at V-shaped elbows. The effects of pipe diameter and inclination angle on the slug characteristics were experimentally examined by using three different pipe diameters and three inclination angles. As a result, it was confirmed that (1) the slug velocity is proportional to the total volume flux, and thereby it is well estimated by a drift flux correlation, (2) the length of a slug unit is well correlated with the ratio of the liquid volume flux to the total volume flux and (3) the slug length can be expressed as a function of the gas volume flux, the slug velocity and the void fraction in a gas bubble region.
社団法人日本機械学会の論文
2003-10-25