IDEAS home Printed from https://ideas.repec.org/a/eee/matcom/v23y1981i2p170-179.html
   My bibliography  Save this article

Identification of spatially varying parameters for a distributed system — Application to a thermal process

Author

Listed:
  • Jarny, Yvon

Abstract

The identification of spatially varying parameters for a partial differential equation describing the thermal behaviour of an experimental extruder will be presented. The state equation of the model is given in a discrete functional framework and the identification problem will be considered in this framework. A steepest descent method will then be used in order to find a numerical solution to the problem. The cost functional to be minimized is non quadratic and takes into account constraints imposed on the parameters or their variations with respect to the spatial variable. The discrete approximation approach permits the exact numerical computation of the cost functional gradient. Temperature measurements made on the experimental extruder are used and results of identification obtained with constant or spatially varying parameters are compared.

Suggested Citation

  • Jarny, Yvon, 1981. "Identification of spatially varying parameters for a distributed system — Application to a thermal process," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 23(2), pages 170-179.
    • Handle: RePEc:eee:matcom:v:23:y:1981:i:2:p:170-179
    DOI: 10.1016/0378-4754(81)90055-0
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/0378475481900550
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/0378-4754(81)90055-0?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Marcos, Bernard & Payre, Guy, 1988. "Parameters estimation of an aquatic biological system by the adjoint method," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 30(5), pages 405-418.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:matcom:v:23:y:1981:i:2:p:170-179. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/mathematics-and-computers-in-simulation/ .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.