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Air-pocket movement in an 18.2 degree downward 240 mm conduit, experimental studies
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Hydraulic Engineering.
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Hydraulic Engineering.
2012 (English)In: Procedia Engineering, ISSN 1877-7058, E-ISSN 1877-7058, Vol. 28, 791-795 p.Article in journal (Refereed) Published
Abstract [en]

Experiments are carried out in a test rig, consisting of a Plexiglas pipe with an inner diameter of 240 mm and an inclination of 18.2o, to investigate air-water two-phase flows in conjunction with bottom spillways. Results show that the critical velocity, which is the minimal water velocity to start moving an air pocket, in the rough pipe, is independent of the air-pocket volume; in the smooth pipe it doesn’t increase with increasing diameter as much as the previous researchers indicated. Pipe roughness doesn’t affect the velocity of the air-pocket when it moves upstream in the downward inclined pipe.

Place, publisher, year, edition, pages
2012. Vol. 28, 791-795 p.
Keyword [en]
experiments, air pocket, conduits
National Category
Civil Engineering
Identifiers
URN: urn:nbn:se:kth:diva-179742OAI: oai:DiVA.org:kth-179742DiVA: diva2:889207
Note

QC 20160107

Available from: 2015-12-22 Created: 2015-12-22 Last updated: 2016-01-07Bibliographically approved

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