کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7157473 1462724 2013 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Modeling anisotropic diffusion using a departure from isotropy approach
ترجمه فارسی عنوان
مدل سازی انتشار بی نهایت با استفاده از خروج از روش ایزوتراپی
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک محاسباتی
چکیده انگلیسی
There are a large number of finite volume solvers available for solution of isotropic diffusion equation. This article presents an approach of adapting these solvers to solve anisotropic diffusion equations. The formulation works by decomposing the diffusive flux into a component associated with isotropic diffusion and another component associated with departure from isotropic diffusion. This results in an isotropic diffusion equation with additional terms to account for the anisotropic effect. These additional terms are treated using a deferred correction approach and coupled via an iterative procedure. The presented approach is validated against various diffusion problems in anisotropic media with known analytical or numerical solutions. Although demonstrated for two-dimensional problems, extension of the present approach to three-dimensional problems is straight forward. Other than the finite volume method, this approach can be applied to any discretization method.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Fluids - Volume 86, 5 November 2013, Pages 298-309
نویسندگان
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