scholarly journals Turbulent Drag Reduction by Coating with Water-soluble Polymer.

1999 ◽  
Vol 65 (629) ◽  
pp. 174-178
Author(s):  
Hiroshi MIZUNUMA ◽  
Masanori EMORI ◽  
Koichi UEDA
Keyword(s):  
Drag Reduction ◽  
Water Soluble ◽  
Turbulent Drag Reduction ◽  
Soluble Polymer ◽  
Water Soluble Polymer ◽  
Turbulent Drag

Drag reduction in rough pipes by water-soluble polymer additives

1972 ◽  
Vol 3 (6) ◽  
pp. 117-118
Author(s):  
I. V. Gazuko ◽  
V. A. Gorodtsov
Keyword(s):  
Drag Reduction ◽  
Water Soluble ◽  
Polymer Additives ◽  
Soluble Polymer ◽  
Water Soluble Polymer

scholarly journals Self-Healing Polymer-Clay Hybrids by Facile Complexation of a Waterborne Polymer with a Clay

2021 ◽  
Author(s):  
Aranee Pleng Teepakakorn ◽  
Makoto Ogawa
Keyword(s):  
Vinyl Alcohol ◽  
Aqueous Media ◽  
Water Soluble ◽  
Poly Vinyl Alcohol ◽  
Self Healing ◽  
Soluble Polymer ◽  
Water Soluble Polymer ◽  
Smectite Clay

Water-induced self-healing materials were prepared by the hybridization of a water-soluble polymer, poly(vinyl alcohol), with a smectite clay by mixing in an aqueous media and subsequent casting. Without using chemical...

scholarly journals Fibre-induced drag reduction

2008 ◽  
Vol 602 ◽  
pp. 209-218 ◽  
Author(s):  
J. J. J. GILLISSEN ◽  
B. J. BOERSMA ◽  
P. H. MORTENSEN ◽  
H. I. ANDERSSON
Keyword(s):  
Experimental Data ◽  
Numerical Simulation ◽  
Reynolds Number ◽  
Drag Reduction ◽  
Elastic Layer ◽  
Turbulent Drag Reduction ◽  
Rigid Polymer ◽  
Fibre Concentration ◽  
Induced Drag ◽  
Turbulent Drag

We use direct numerical simulation to study turbulent drag reduction by rigid polymer additives, referred to as fibres. The simulations agree with experimental data from the literature in terms of friction factor dependence on Reynolds number and fibre concentration. An expression for drag reduction is derived by adopting the concept of the elastic layer.

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