Optimum Shape Design for Unsteady Three-Dimensional Viscous Flows

2009 ◽  
pp. 519-524
Author(s):  
S. Nadarajah ◽  
A. Jameson
Keyword(s):  
Three Dimensional ◽  
Viscous Flows ◽  
Optimum Shape ◽  
Shape Design

Optimum shape design for turbulent viscous flows around complete configurations of 2D flying sails

2004 ◽  
Vol 4 (1-2) ◽  
pp. 43-55
Author(s):  
Mattia de' Michieli Vitturi ◽  
François Beux ◽  
Giovanni Lombardi ◽  
Alain Dervieux
Keyword(s):  
Viscous Flows ◽  
Optimum Shape ◽  
Shape Design

Analysis of 2D Coupled Sails: Use of an Optimization Technique Based on Turbulent Viscous Flows

2003 ◽  
Author(s):  
Giovanni Lombardi ◽  
Francois Beux ◽  
Mattia de? Michieli Vitturi
Keyword(s):  
Gradient Descent ◽  
Grid Point ◽  
Optimization Technique ◽  
Viscous Flows ◽  
Descent Method ◽  
Optimum Shape ◽  
Shape Design ◽  
Gradient Descent Method ◽  
Flow Modeling ◽  
America’S Cup

In this study the optimization of a complete 2D flying sails configuration is considered. An optimum shape design problem is then defined considering the maximization of the drive force on the sails, constrained by the heeling force, and complete flow modeling including turbulent effects. The corresponding numerical algorithm is based on a gradient descent method coupled with a discrete shape grid-point parameterization. The descent direction is obtained by an exact computation of an incomplete discrete gradient associated with a multilevel strategy. The numerical behavior of the present formulation has been illustrated by the optimization of real 2D configurations of an America’s Cup yacht.

New technologies for advanced three-dimensional optimum shape design in aeronautics

1999 ◽  
Vol 30 (2) ◽  
pp. 179-191 ◽  
Author(s):  
Alain Dervieux ◽  
Stéphane Lanteri ◽  
Jean-Michel Malé ◽  
Nathalie Marco ◽  
Nicole Rostaing-Schmidt ◽  
...  
Keyword(s):  
New Technologies ◽  
Three Dimensional ◽  
Optimum Shape ◽  
Shape Design
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