PhD defense - J. Laurenceau

Kriging based response surfaces for aerodynamic shape optimization

Delivered by INP Toulouse
Speciality: Fluid dynamics

June 26, 2008 - CERFACS

Abstract

Due to the computational cost of numerical simulations solving RANS equations, the range of possible optimization problems is limited. With respect to this constraint a new response surface based optimizer is presented and applied to various drag minimization problems. It enables to find a better solution than usual gradient based algorithms at an acceptable cost. It is also able to solve high dimensional problems by using gradient enhanced Kriging. Using another framework, response surfaces were also used as a data exchange tool to deal with multidisciplinary shape optimization problems. This way, a bi-level method was applied to find the optimal position of an engine on a civil transport aircraft.

Jury

J.A. Desideri	Senior researcher - INRIA, Sophia-Antipolis	Referee
B. Mohammadi	Professor - University of Montpellier II	Referee
G. Carrier	Research engineer - Onera, Châtillon	Member
M. Meaux	Research engineer - Airbus, Toulouse	Member
J. Noailles	Professor - ENSEEIHT, Toulouse	Member
M. Visonneau	Senior researcher - Ecole Centrale, Nantes	Member
P. Sagaut	Professor - University of Pierre et Marie Curie, Paris VI	Advisor