A hybrid Laplace transform/finite difference boundary element method for diffusion problems

Stephen Kane, Alan Davies, Diane Crann, Choi-Hong Lai

    Research output: Contribution to journalArticlepeer-review

    9 Citations (Scopus)


    The solution process for diffusion problems usually involves the time development separately from the space solution. A finite difference algorithm in time requires a sequential time development in which all previous values must be determined prior to the current value. The Stehfest Laplace transform algorithm, however, allows time solutions without the knowledge of prior values. It is of interest to be able to develop a time-domain decomposition suitable for implementation in a parallel environment. One such possibility is to use the Laplace transform to develop coarse-grained solutions which act as the initial values for a set of fine-grained solutions. The independence of the Laplace transform solutions means that we do indeed have a time-domain decomposition process. Any suitable time solver can be used for the fine-grained solution. To illustrate the technique we shall use an Euler solver in time together with the dual reciprocity boundary element method for the space solution
    Original languageEnglish
    Pages (from-to)79-86
    Number of pages7
    JournalComputer Modelling in Engineering and Sciences
    Issue number2
    Publication statusPublished - 2007


    • boundary element method
    • finite difference method


    Dive into the research topics of 'A hybrid Laplace transform/finite difference boundary element method for diffusion problems'. Together they form a unique fingerprint.

    Cite this