TY - GEN
T1 - Visualization study of gas-liquid two-phase flow in a hydrophobic pipe
AU - Kikuchi, Takayoshi
AU - Hazuku, Tatsuya
AU - Fukuhara, Yutaka
AU - Takamasa, Tomoji
AU - Hibiki, Takashi
N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
PY - 2007
Y1 - 2007
N2 - To evaluate the effect of pipe wall surface wettability on flow characteristics in a vertical upward gas-liquid two-phase flow, a visualization study was performed using an acrylic pipe and a hydrophobic pipe. Such basic flow characteristics as flow patterns, pressure drop and void fraction were investigated in these pipes. In the hydrophobic pipe, an inverted-churn flow regime was observed in a region where the churn flow regime was C observed in the acrylic pipe, while a droplet flow regime was observed in the region where an annular flow regime was observed in the acrylic pipe. At a high gas flow rate, the average void fraction in the hydrophobic pipe was higher than in the acrylic pipe. The effect of surface wall wettability on frictional pressure loss was confirmed to be insignificant under the present experimental conditions. Copyright © 2007 by ASME.
AB - To evaluate the effect of pipe wall surface wettability on flow characteristics in a vertical upward gas-liquid two-phase flow, a visualization study was performed using an acrylic pipe and a hydrophobic pipe. Such basic flow characteristics as flow patterns, pressure drop and void fraction were investigated in these pipes. In the hydrophobic pipe, an inverted-churn flow regime was observed in a region where the churn flow regime was C observed in the acrylic pipe, while a droplet flow regime was observed in the region where an annular flow regime was observed in the acrylic pipe. At a high gas flow rate, the average void fraction in the hydrophobic pipe was higher than in the acrylic pipe. The effect of surface wall wettability on frictional pressure loss was confirmed to be insignificant under the present experimental conditions. Copyright © 2007 by ASME.
KW - Contact angle
KW - Flow pattern
KW - Flow visualization
KW - Pressure drop
KW - Two-phase flow
KW - Void fraction
KW - Wettability
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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-40449122113&origin=recordpage
U2 - 10.1115/FEDSM2007-37101
DO - 10.1115/FEDSM2007-37101
M3 - RGC 32 - Refereed conference paper (with host publication)
SN - 0791842886
SN - 9780791842881
VL - 1 SYMPOSIA
T3 - 2007 Proceedings of the 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007
SP - 479
EP - 485
BT - 2007 Proceedings of the 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007
T2 - 2007 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007
Y2 - 30 July 2007 through 2 August 2007
ER -