کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4639361 1632044 2013 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A mixed finite element discretization scheme for a concrete carbonation model with concentration-dependent porosity
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات ریاضیات کاربردی
پیش نمایش صفحه اول مقاله
A mixed finite element discretization scheme for a concrete carbonation model with concentration-dependent porosity
چکیده انگلیسی

We investigate a prototypical reaction–diffusion-flow problem in saturated/unsaturated porous media. The special features of our problem are twofold: the reaction produces water and therefore the flow and transport are coupled in both directions and moreover, the reaction may alter the microstructure. This means we have a variable porosity in our model. For the spatial discretization we propose a mass conservative scheme based on the mixed finite element method (MFEM). The scheme is semi-implicit in time. Error estimates are obtained for some particular cases. We apply our finite element methodology for the case of concrete carbonation—one of the most important physico-chemical processes affecting the durability of concrete.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computational and Applied Mathematics - Volume 246, July 2013, Pages 74–85
نویسندگان
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