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- C K Aidun, Y Lu, E Ding, T B Anderson, R Jackson, M J Andrews +11 others
- 2002

Direct analysis of particulate suspensions with inertia using the discrete Boltzmann equation, The multiphase particle-in-cell (MP-PIC) method for dense particulate flows. Int. Derivation of constitutive equations for interfacial force and Reynolds stress for a suspension of spheres using ensemble averaging. Chem Eng. R. A. Bagnold. Fluid forces on a body… (More)

- Raino A E M Akinen, Jari Toivanen, Jacques Periaux, John Wiley
- 1998

A multiobjective multidisciplinary design optimization (MDO) of two-dimensional airfoil is presented. In this paper, an approximation for the Pareto set of optimal solutions is obtained by using a genetic algorithm (GA). The rst objective function is the drag coeecient. As a constraint, it is required that the lift coeecient is above a given value. The CFD… (More)

- M Sefrioui, J Periaux
- 2007

This article presents both theoretical aspects and experimental results on Nash Genetic Algorithms. Nash GAs are an alternative for multiple objective optimization as they are an optimization tool based on non-cooperative game theory. They are explained in details, along with the advantages conferred by their equilibrium state. This approach is tested on a… (More)

- Roland Glowinski, Tsorng-Whay Pan, Todd I Hesla, Daniel D Joseph, Jacques Periaux
- 1998

- V Venkatakrishnan, H D Simon, T J Barth, D L Whitaker, B Grossman, R L Ohner +108 others
- 1995

Adapted hybrid prismatic-tetrahedral grid about a hemisphere. (b) Surface Mach contours on the symmetry plane for supersonic laminar ow (M 1 = 1:4, Re = 1000) 128]. 37 Figure 8. Comparison of various discretization methods for the circular advection problem 13]. (a) Grid used for the two-dimensional advection equation. (b) Piecewise-constant nite-volume… (More)

- P Wesseling, E Oñate, J Périaux, E Lindblad, D M Valiev, B Müller +3 others
- 2006

New high order implicit-explicit Runge-Kutta methods have been developed and implemented into a finite volume code to solve the Navier-Stokes equations for reacting gas mixtures. The resulting nonlinear systems in each stage are solved by Newton's method. If only the chemistry is treated implicitly, the linear systems in each Newton iteration are simple and… (More)

- D Whitley, S Rana, R Heckendorn, Editor D Quagliarelli, J Periaux, C Poloni +1 other
- 1998

Evolutionary Algorithms are often presented as general purpose search methods. Yet, we also know that no search method is better than another over all possible problems and that in fact there is often a good deal of problem speciic information involved in the choice of problem representation and search operators. In this paper we explore some very general… (More)

- R Schilling, W Haase, J Periaux, H Baier, G Bugeda, Akira Oyama +2 others
- 2005

A new constraint-handling method based on Pareto-optimality concept for multi-objective multi-constraint design optimization problems has been proposed. The proposed method does not need any constants to be tuned for constraint handling. In addition, the present method does not use weighted-sum of constraints and thus does not need tuning of weight… (More)

- M O Bristeau, R Glowinski, J Periaux
- 2002