Rod-Climbing Effect in Newtonian Fluids | Zendy

Daniel Bonn | Zendy; M. Kobylko | Zendy; Steffen Bohn | Zendy; Jacques Meunier | Zendy; Alexander Morozov | Zendy; Wim van Saarloos | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Rod-Climbing Effect in Newtonian Fluids

Author(s) -

Daniel Bonn,

M. Kobylko,

Steffen Bohn,

Jacques Meunier,

Alexander Morozov,

Wim van Saarloos

Publication year - 2004

Publication title -

physical review letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.688

H-Index - 673

eISSN - 1079-7114

pISSN - 0031-9007

DOI - 10.1103/physrevlett.93.214503

Subject(s) - newtonian fluid , non newtonian fluid , climbing , mechanics , instability , complex fluid , materials science , stress (linguistics) , meniscus , viscous liquid , classical mechanics , physics , thermodynamics , optics , linguistics , philosophy , archaeology , history , incidence (geometry)

When a rotating rod is brought into a polymer melt or concentrated polymer solution, the meniscus climbs the rod. This spectacular rod climbing is due to the normal stresses present in the polymer fluid and is thus a purely non-Newtonian effect. A similar rod climbing of an interface between two fluids has therefore been taken as a signature that one of the fluids exhibits normal stress effects. We show here, however, that the effect can occur with simple Newtonian fluids: it occurs when a Taylor-Couette instability happens in the less viscous of the two liquids but not in the more viscous one.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research