Apr 14 2015

Focus on a joint research project: AQUARIUS

AQUARIUS  (2011-2017)
Numerical Methods for Uncertainty Quantification Applied to CFD Problem

Principal Investigators :

  • Dr. Pietro Marco Congedo, CARDAMOM project-team, Inria Bordeaux Sud-Ouest
  • Prof. Gianluca Iaccarino, Stanford University.

Research objectives:

Aquarius deals with the development of uncertainty quantification methods and its application to Computational Fluid Dynamics problems. It involves the Inria team CARDAMOM (P.M. Congedo) and the Department of Mechanical Engineering at Stanford University (Prof. G. Iaccarino).

Convergence rates of the S2M method with respect to other classical techniques for robust design optimization (short column test function)

Convergence rates of the S2M method with respect to other classical techniques for robust design optimization (short column test function)

Scientific achievements:

Aquarius has been investigating various topics since 2011, mostly focused on its main research axes:

  • Uncertainty quantification: The team has proposed a formulation dealing with a semi-intrusive (SI) method allowing the computation of statistics of linear and non linear Partial Differential Equations (PDEs) solutions.
  • Robust design optimization: Two efficient global strategies for robust optimization have been developed. The first one is based on the extension of simplex stochastic collocation to the optimization space, while the second one consists in a hybrid strategy using ANOVA decomposition and high-order statistical moments. 

Publications and Awards:

  • 10 Journal articles, 9 Book chapters, 13 Conference papers, 13 Invited seminars.

  • Organization of the International Workshop BOQUSE 2013 (December, Bordeaux), of the von Karman Institute (VKI) Lecture Series (Brussels), of Mini-symposia at ECCOMAS 2014 and EUROGEN 2011-2013, of the Center for Turbulence Research (CTR) Summer Program (Stanford University).

Selected publication:

P.M. Congedo, J. Witteveen, G. Iaccarino, 2013, A simplex-based numerical framework for simple and efficient robust design optimization. Computational Optimization and Application, 56 (1), pp. 231-251.

Follow-up:

The team was renewed for 3 years in 2014 and is pursuing its collaboration along the 2 aforementioned research axes.

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For more information about the AQUARIUS research project, visit the website here!