Experiments of Air-pocket Movement in an 18.2 degrees downward 240-mm Conduit
2012 (English)In: 2012 International Conference On Modern Hydraulic Engineering, Elsevier, 2012, 791-795 p.Conference paper (Refereed)
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
Elsevier, 2012. 791-795 p.
, Procedia Engineering, ISSN 1877-7058 ; 28
two-phase flow, air pocket, critical velocity, roughness effect, diameter effect
IdentifiersURN: urn:nbn:se:kth:diva-52309DOI: 10.1016/j.proeng.2012.01.811ISI: 000306529200137ScopusID: 2-s2.0-84863119424OAI: oai:DiVA.org:kth-52309DiVA: diva2:465939
2012 International Conference on Modern Hydraulic Engineering, CMHE 2012; Nanjing, Jiangsu; 9 March 2012 through 11 March 2012
QC 201112152011-12-152011-12-152012-09-14Bibliographically approved