کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4993775 1458024 2018 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Multiscale mass transfer coupling of triple-continuum and discrete fractures for flow simulation in fractured vuggy porous media
ترجمه فارسی عنوان
اتصال چند جملهای جفت شدن شکست سه گانه و حلقه های گسسته برای شبیه سازی جریان در رسانه های متخلخل خرد شکسته
کلمات کلیدی
انتقال جرم در رسانه متخلخل، روش المان محدود چند منظوره، مدل چند بعدی مدل شکستگی گسسته شبیه سازی عددی،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی


- A coupled multiscale and triple-continuum approach for fractured vuggy porous media.
- A systematic coupling using Multiscale Finite Element Method (MsFEM) framework.
- Fractures/vugs can be incorporated as superimposed continua and discrete features.

Fractured vuggy porous media continue to challenge the flow simulation research involving mass and/or heat transfer processes. Here, we report a coupled multiscale and multi-continuum approach developed to improve the modeling of multiphase flow through fractured vuggy porous media involving multi-continuum mass transfers. Multiple levels of fractures can be not only modeled as different superimposed continua but also embodied as discrete fracture networks based on their geometrical characteristics. Different configurations of vuggy existence can also be handled by a continuum and/or their discrete representations. We develop a systematic coupling using Multiscale Finite Element Method (MsFEM) as a framework for coarsening and refinement. MsFEM is used to capture subgrid scale heterogeneities and interactions through multiscale basis functions calculated based on the multi-continuum background. Unstructured mesh is applied to model discrete fractures in arbitrary directions and discrete vugs with complex geometries. This paper presents a significant advancement in terms of elevating the limitations of the multi-continuum models in handling complex fracture and/or vug geometry and extending the model reduction capability of MsFEM. Several numerical examples are carried out to demonstrate the capability of the proposed coupling method.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 116, January 2018, Pages 484-495
نویسندگان
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