Title :
Tracking of a moving interface during a 2D melting or solidification process from measurements on the solid part only
Author :
WANG, By X F ; Liang, H.S. ; Li, Q. ; Deng, Y.L.
Author_Institution :
Dept. of Inf. & Control, Xi´´an Univ. of Technol., China
Abstract :
The moving solid-liquid interface of a melting solid in a rectangular enclosure is identified from temperature and flux measurements performed on the cold side of the solid only. The lack of measurement in the liquid phase prevents the interface to be recovered by straightforward use of the direct Stefan solution. The identification of this melting front is an inverse problem that requires particular solution methods. An algorithm is used, based on a regularized least squares approach, that is extended to this nonlinear case by a predictive sliding horizon technique
Keywords :
heat transfer; interface phenomena; inverse problems; least squares approximations; melting; solidification; 2D melting; 2D solidification; algorithm; direct Stefan solution; flux measurements; inverse problem; melting front; melting solid; moving solid-liquid interface tracking; nonlinear problem; predictive sliding horizon technique; rectangular enclosure; regularized least squares approach; solid part measurements; temperature measurements; Boundary conditions; Equations; Inverse problems; Least squares methods; Performance evaluation; Phase measurement; Solids; Temperature dependence; Temperature measurement; Time measurement;
Conference_Titel :
Intelligent Control and Automation, 2000. Proceedings of the 3rd World Congress on
Conference_Location :
Hefei
Print_ISBN :
0-7803-5995-X
DOI :
10.1109/WCICA.2000.863002