Title
A Heat Equation For Freezing Processes With Phase Change: Stability Analysis And Applications
Abstract
In this work, the stability properties as well as possible applications of a partial differential equation (PDE) with state-dependent parameters are investigated. Among other things, the PDE describes freezing of foodstuff, and is closely related to the (potential) Burgers' equation. We show that for certain forms of coefficient functions, the PDE converges to a stationary solution given by (fixed) boundary conditions that make physical sense. These boundary conditions are either symmetric or asymmetric of Dirichlet type. Furthermore, we present an observer design based on the PDE model for estimation of inner-domain temperatures in block-frozen fish and for monitoring freezing time. We illustrate the results with numerical simulations.
Year
DOI
Venue
2016
10.1080/00207179.2015.1102327
INTERNATIONAL JOURNAL OF CONTROL
Keywords
Field
DocType
freezing process, observer design, Distributed parameter systems, stability analysis
Boundary value problem,Mathematical optimization,Control theory,Phase change,Heat equation,Distributed parameter system,Dirichlet distribution,Observer (quantum physics),Frost (temperature),Partial differential equation,Mathematics
Journal
Volume
Issue
ISSN
89
4
0020-7179
Citations 
PageRank 
References 
0
0.34
2
Authors
4
Name
Order
Citations
PageRank
Christoph Josef Backi111.83
Jan Dimon Bendtsen24622.56
jorgen o leth300.34
Jan Tommy Gravdahl432743.60