Stochastic optimization applied to CFD shape design

Aly S, Ogot M, Pelz R, Marconi F, Siclari M. "Stochastic optimization applied to CFD shape design.". In: 12th Computational Fluid Dynamics Conference.; 1995:.


Simulated Annealing (SA), a stochastic optimization method, is applied to aerodynamic
shape design in which at least one CFD solve is required for each evaluation of the
objective function. A simple, short algorithm, SA is used as an outer loop and calls the CFD
solvers. It is found that objective functions which involve CFD in shape design, have small-
scale roughness due to discretization errors and incomplete convergence. SA is more robust
than the gradient-based methods, in the sense that the roughness creates difficulties for …



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