کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5771031 1629907 2017 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Research papersUnified pipe network method for simulation of water flow in fractured porous rock
ترجمه فارسی عنوان
روش شبکه یکپارچه برای شبیه سازی جریان آب در سنگ متخلخل شکسته
کلمات کلیدی
سنگ متخلخل متخلخل، جریان آب، روش شبکه یکپارچه، شبیه سازی عددی، شبکه شکستگی،
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
چکیده انگلیسی


- A UPM method is developed to simulate water flow in fractured dual permeability medium.
- High quality adaptive conforming mesh method is developed for medium reconstruction.
- The proposed method is accurate and robust even with highly distorted mesh.
- Effects of fracture density and aperture on water recharge are studied.

Rock masses are often conceptualized as dual-permeability media containing fractures or fracture networks with high permeability and porous matrix that is less permeable. In order to overcome the difficulties in simulating fluid flow in a highly discontinuous dual-permeability medium, an effective unified pipe network method is developed, which discretizes the dual-permeability rock mass into a virtual pipe network system. It includes fracture pipe networks and matrix pipe networks. They are constructed separately based on equivalent flow models in a representative area or volume by taking the advantage of the orthogonality of the mesh partition. Numerical examples of fluid flow in 2-D and 3-D domain including porous media and fractured porous media are presented to demonstrate the accuracy, robustness, and effectiveness of the proposed unified pipe network method. Results show that the developed method has good performance even with highly distorted mesh. Water recharge into the fractured rock mass with complex fracture network is studied. It has been found in this case that the effect of aperture change on the water recharge rate is more significant in the early stage compared to the fracture density change.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hydrology - Volume 547, April 2017, Pages 80-96
نویسندگان
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