Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1140262 | Mathematics and Computers in Simulation | 2015 | 11 Pages |
Abstract
Extraction problems governed by systems of partial differential equations appear in several branches of Engineering. Parameter estimation involves discretization and modeling in a finite dimensional setting. A model that arises in the supercritical extraction area is analyzed in this paper. Numerical difficulties of the nonlinear programming formulation of the estimation process are discussed and a satisfactory procedure based on unconstrained derivative-free optimization is suggested.
Related Topics
Physical Sciences and Engineering
Engineering
Control and Systems Engineering
Authors
Esdras P. Carvalho, Julian Martínez, J.M. Martínez, Feodor Pisnitchenko,