کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8895244 1629899 2017 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Accounting for sub-resolution pores in models of water and solute transport in soils based on computed tomography images: Are we there yet?
ترجمه فارسی عنوان
حسابداری برای منافذ زیر حلال در مدل های انتقال آب و محلول در خاک بر اساس تصاویر کامپیوتری توموگرافی: آیا هنوز وجود دارد؟
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
چکیده انگلیسی
In the last decade, X-ray computed tomography (CT) has become widely used to characterize the geometry and topology of the pore space of soils and natural porous media. Regardless of the resolution of CT images, a fundamental problem associated with their use, for example as a starting point in simulation efforts, is that sub-resolution pores are not detected. Over the last few years, a particular type of modeling method, known as “Grey” or “Partial Bounce Back” Lattice-Boltzmann (LB), has been adopted by increasing numbers of researchers to try to account for sub-resolution pores in the modeling of water and solute transport in natural porous media. In this short paper, we assess the extent to which Grey LB methods indeed offer a workable solution to the problem at hand. We conclude that, in spite of significant computational advances, a major experimental hurdle related to the evaluation of the penetrability of sub-resolution pores, is blocking the way ahead. This hurdle will need to be cleared before Grey LB can become a credible option in the microscale modeling of soils and sediments. A necessarily interdisciplinary effort, involving both modelers and experimentalists, is needed to clear the path forward.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hydrology - Volume 555, December 2017, Pages 253-256
نویسندگان
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