• constructing efficient substructure-based preconditioners for bem systems of equations

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 547
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     in this work, a generic substructuring algorithm is employed to construct global block-diagonal preconditioners for bem systems of equations. in this strategy, the allowable fill-in positions are those on-diagonal block matrices corresponding to each be subregion. as these subsystems are independently assembled, the preconditioner for a particular be model, after the lu decomposition of all subsystem matrices, is easily formed. so as to highlight the efficiency of the preconditioning proposed, the bi-cg solver, which presents a quite erratic convergence behavior, is considered. in the particular applications of this paper, 3d representative volume elements (rves) of carbon-nanotube (cnt) composites are analyzed. the models contain up to several tens of thousands of degrees of freedom. the efficiency and relevance of the preconditioning technique is also discussed in the context of developing general (parallel) be codes.

سوال خود را در مورد این مقاله مطرح نمایید :

با انتخاب دکمه ثبت پرسش، موافقت خود را با قوانین انتشار محتوا در وبسایت تی پی بین اعلام می کنم
مقالات جدیدترین رویدادها
مقالات جدیدترین ژورنال ها