Comparitive Study of Two Optimization Frameworks Applied to Case III: Induced-Drag Minimization

2016 ◽  
Author(s):  
Arthur W. Rizzi ◽  
Mengmeng Zhang ◽  
Francois Bisson ◽  
Sivakumaran Nadarajah ◽  
Jan B. Vos
Keyword(s):  
Induced Drag ◽  
Drag Minimization

Induced-Drag Minimization of Nonplanar Geometries Based on the Euler Equations

AIAA Journal ◽  
2010 ◽  
Vol 48 (11) ◽  
pp. 2564-2575 ◽  
Author(s):  
Jason E. Hicken ◽  
David W. Zingg
Keyword(s):  
Euler Equations ◽  
Induced Drag ◽  
Drag Minimization

ON DRAG MINIMIZATION OF AXISYMMETRIC NOSES IN THE RANGE OF HIGH SUBSONIC SPEEDS

2018 ◽  
Vol 49 (7) ◽  
pp. 701-712
Author(s):  
Sergey Alexandrovich Takovitskii ◽  
Dmitry Sergeevich Ivanyushkin
Keyword(s):  
Drag Minimization

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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