Open AccessDynamics of gas slugs in a vertical annular channel
Author(s) -
O. N. Kashinsky,
A. S. Kurdyumov
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1382/1/012087
Subject(s) - slug , slug flow , shear stress , mechanics , channel (broadcasting) , geology , stress (linguistics) , concentric , materials science , geotechnical engineering , optics , geometry , flow (mathematics) , two phase flow , physics , engineering , mathematics , telecommunications , paleontology , linguistics , philosophy
Experimental studies of gas slug motion in an annular channel were performed. The channel consisted of two concentric pipes with the diameters of 32 and 10 mm. Experiments were performed for different values of liquid velocity. Slug velocity was measured using optical sensors. Wall shear stress measurements were performed using an electrodiffusional technique. It was shown that the shape of the slug in the annular channel differs significantly from that in a pipe. The distribution of wall shear stress along the slug was presented for different positions of the slug.