scholarly journals A mathematical model of turbulent drag reduction by high-molecular-weight polymeric additives in a shear flow

2008 ◽  
Vol 20 (9) ◽  
pp. 091702 ◽  
Author(s):  
Grigory Isaakovich Barenblatt
Keyword(s):  
Mathematical Model ◽  
Molecular Weight ◽  
Shear Flow ◽  
Drag Reduction ◽  
High Molecular Weight ◽  
Turbulent Drag Reduction ◽  
Polymeric Additives ◽  
Turbulent Drag

S055012 Additive turbulent drag reduction in high shear flow

2011 ◽  
Vol 2011 (0) ◽  
pp. _S055012-1-_S055012-4
Author(s):  
Hiroshi MIZUNUMA ◽  
Suguru NAGAO ◽  
Nguyen TUAN
Keyword(s):  
Shear Flow ◽  
Drag Reduction ◽  
High Shear ◽  
Turbulent Drag Reduction ◽  
Turbulent Drag

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.

scholarly journals Turbulent drag reduction in a dilute polymeric solution flowing through a fiber-implanted circular pipe.

1988 ◽  
Vol 21 (4) ◽  
pp. 441-443
Author(s):  
HIROTSUGU HATTORI ◽  
TOMOO YAMAUCHI ◽  
SEIICHI TANABE ◽  
HIDEOMI MATSUDA
Keyword(s):  
Drag Reduction ◽  
Circular Pipe ◽  
Turbulent Drag Reduction ◽  
Polymeric Solution ◽  
Turbulent Drag
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