24,248 research outputs found
Differential Evolution with Enhanced Abilities for Adaptation Applied to Heterogeneous Numerical Optimization
This article presents an exploration of Differential Evolution (DE) algorithm with enhanced adaptability. The main purpose of this study is to identify how this search method can cope with changes of the number of variables of a hard design test, unaided. The results clearly show that this method successfully solves the explored functions
Optimal mixing enhancement
We introduce a general-purpose method for optimising the mixing rate of
advective fluid flows. An existing velocity field is perturbed in a
neighborhood to maximize the mixing rate for flows generated by velocity fields
in this neighborhood. Our numerical approach is based on the infinitesimal
generator of the flow and is solved by standard linear programming methods. The
perturbed flow may be easily constrained to preserve the same steady state
distribution as the original flow, and various natural geometric constraints
can also be simply applied. The same technique can also be used to optimize the
mixing rate of advection-diffusion flow models by manipulating the drift term
in a small neighborhood
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