Abstract
The optimal control of solidification in metal casting is considered. The underlying mathematical model is based on a three-dimensional two-phase initial-boundary value problem of the Stefan type. The study is focused on choosing a cost functional in the optimal control of solidification and choosing a difference scheme for solving the direct problem. The results of the study are described and analyzed.
Similar content being viewed by others
References
A. V. Albu and V. I. Zubov, “Mathematical Modeling and Study of the Process of Solidification in Metal Casting,” Zh. Vychisl. Mat. Mat. Fiz. 47, 882–902 (2007) [Comput. Math. Math. Phys. 47, 843–862 (2007)].
A. V. Albu and V. I. Zubov, “Optimal Control of the Solidification Process in Metal Casting,” Zh. Vychisl. Mat. Mat. Fiz. 48, 851–862 (2008) [Comput. Math. Math. Phys. 48, 805–815 (2008)].
A. V. Albu and V. I. Zubov, “Determination of Functional Gradient in an Optimal Control Problem Related to Metal Solidification,” Zh. Vychisl. Mat. Mat. Fiz. 49, 51–75 (2009) [Comput. Math. Math. Phys. 49, 47–70 (2009)].
A. V. Lykov, Theory of Heat Conduction (Vysshaya Shkola, Moscow, 1967) [in Russian].
M. Rose, “A Method for Calculating Solutions of Parabolic Equations with a Free Boundary,” Math. Comput. 14, 249–256 (1960).
R. E. White, “An Enthalpy Formulation of the Stephan Problem,” SIAM J. Numer. Anal. 19, 1129–1157 (1982).
R. E. White, “A Numerical Solution of the Enthalpy Formulation of the Stephan Problem,” SIAM J. Numer. Anal. 19, 1158–1172 (1982).
A. V. Albu and V. I. Zubov, “A Modified Scheme for Analyzing the Process of Melting,” Zh. Vychisl. Mat. Mat. Fiz. 41, 1434–1443 (2001) [Comp. Math. Math. Phys. 41, 1363–1371 (2001)].
Y. G. Evtushenko, “Computation of Exact Gradients in Distributed Dynamic Systems,” Optimizat. Methods Software, No. 9, 45–75 (1998).
Author information
Authors and Affiliations
Corresponding author
Additional information
Dedicated to Academician A.A. Dorodnicyn on the Occasion of the Centenary of His Birth
Original Russian Text © A.V. Albu, V.I. Zubov, 2011, published in Zhurnal Vychislitel’noi Matematiki i Matematicheskoi Fiziki, 2011, Vol. 51, No. 1, pp. 24–38.
Rights and permissions
About this article
Cite this article
Albu, A.V., Zubov, V.I. Choosing a cost functional and a difference scheme in the optimal control of metal solidification. Comput. Math. and Math. Phys. 51, 21–34 (2011). https://doi.org/10.1134/S0965542511010027
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0965542511010027