• a recursive application of the integral equation in the boundary element method

    نویسندگان :
    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 449
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     this paper presents a recursive application of the governing integral equation aimed at improving the accuracy of numerical results of the boundary element method (bem). usually, only the results at internal domain points when using bem are found using this approach, since the nodal boundary values have already been calculated. here, it is shown that the same idea can be used to obtain better accuracy for the boundary results as well. instead of locating the new source points inside the domain, they are positioned on the boundary, with different coordinates to the nodal points. the procedure is certainly general, but will be presented using as an example the two dimensional laplace equation, for the sake of simplicity to point out the main concepts and numerical aspects of the method proposed, especially due to the determination of directional derivatives of the primal variable, which is part in hyper-singular bem theory.

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