Drag Reduction in External Flows of Additive Solutions

1969 ◽  
pp. 331-350 ◽  
Author(s):  
Jin Wu
Keyword(s):  
Drag Reduction ◽  
External Flows

Drag Reduction by Ejecting Additive Solutions Into Pure-Water Boundary Layer

1972 ◽  
Vol 94 (4) ◽  
pp. 749-754 ◽  
Author(s):  
Jin Wu ◽  
M. P. Tulin
Keyword(s):  
Boundary Layer ◽  
Drag Reduction ◽  
Flat Plate ◽  
Pure Water ◽  
Plane Boundary ◽  
External Flows ◽  
Additive Solution

Drag reduction caused by ejecting additive solutions from a slot into a pure-water boundary layer on a flat plate has been systematically studied. Results include drag measurements for a plane boundary, smooth and rough, with various openings of the slot and with various concentrations and discharges of the ejected additive solution. Conclusions have been drawn on the additive requirement in external flows and on the ejection technique for an optimum drag reduction.

Drag Reduction and Velocity Profiles Distribution of Crude Oil Flow in Spiral Pipes

2015 ◽  
Vol 9 (1) ◽  
pp. 1 ◽  
Author(s):  
Yanuar Yanuar ◽  
Kurniawan T. Waskito ◽  
Gunawan Gunawan ◽  
Budiarso Budiarso
Keyword(s):  
Drag Reduction ◽  
Crude Oil ◽  
Velocity Profiles ◽  
Oil Flow

Surfactant drag reduction

2017 ◽  
Author(s):  
A. Bismarck ◽  
L. Chen ◽  
J. M. Griffen ◽  
Geoffrey F. Hewitt ◽  
John Christos Vassilicos
Keyword(s):  
Drag Reduction
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