The adsorbed-entangled layer in drag reduction

✍ Scribed by James H. Hand; Michael C. Williams

• Publisher: Elsevier Science
• Year: 1973
• Tongue: English
• Weight: 524 KB
• Volume: 28
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(73)85087-0

✦ Synopsis

The existence of adsorbed-entangled layers at flow boundaries of dilute polymer solutions is demonstrated by observing chemical effects in wash-off kinetics for such layers and by monitoring polymer concentration build-up in a flow i&tared experiment. These layers are then "'anchored" by a novel, non-reactive technique to create semi-permanent drag reducing surfaces.