Slip velocity ratios in an air-water system under steady-state and transient conditions

✍ Scribed by G.P. Nassos; S.G. Bankoff

• Book ID: 103005492
• Publisher: Elsevier Science
• Year: 1967
• Tongue: English
• Weight: 551 KB
• Volume: 22
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(67)80049-6

✦ Synopsis

A study was made of slip velocity ratios in air-water flow in a 22 in. vertical pipe under steady-state periodic conditions. The steadv-state data for V. vs. Vm fell in a straight line, as suggested by Neal and by Zuber and Findlay. Thk slope correspoids to Co=l.l, which; in conjunction with the rounded void fraction profiles, would indicate very flat velocity profiles. It was found that the time-averaged periodic V, vs.

Vm data also fell on a straight line, of somewhat steeper slope (CO= 1*2), possibly due to a secondorder approximation error.