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Development of Embedded Element Technique for Permeability Analysis of Cracked Porous Media
المؤلفون المشاركون
المصدر
Mathematical Problems in Engineering
العدد
المجلد 2017، العدد 2017 (31 ديسمبر/كانون الأول 2017)، ص ص. 1-12، 12ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2017-10-17
دولة النشر
مصر
عدد الصفحات
12
التخصصات الرئيسية
الملخص EN
The widely used approach of mesoscale finite element modeling for permeability analysis is to simulate the matrix and cracks with continuum elements (CE), whereas this process brings technical difficulties in generating a satisfying mesh conformity at the interface.
In this work, an alternative method based on embedded element (EE) technique is developed for the prediction of water pressure field and effective permeability in the numerical simulation.
Based on the mathematical similarity between elasticity and seepage problems, water pressure can derive from the corresponding displacement through “elastic analogy.” To assess the capability of the EE technique, different cases are simulated and compared with the CE model.
The results show that there is a satisfactory agreement in water pressures and velocities between the CE and EE modeling.
In the CE model, different factors, such as permeability contrast between matrix and cracks (Kcrack/Kmatrix) and mesh size, are considered.
It is obvious to find that results will become stable when Kcrack/Kmatrix reaches 104, and the mesh size has little impact.
The effective permeability of 3D porous media with random cracks is evaluated and the results show that the differential method is accurate for 3D permeability analysis when the crack density is not large.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Qian, Peng& Xu, Qianjun. 2017. Development of Embedded Element Technique for Permeability Analysis of Cracked Porous Media. Mathematical Problems in Engineering،Vol. 2017, no. 2017, pp.1-12.
https://search.emarefa.net/detail/BIM-1191460
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Qian, Peng& Xu, Qianjun. Development of Embedded Element Technique for Permeability Analysis of Cracked Porous Media. Mathematical Problems in Engineering No. 2017 (2017), pp.1-12.
https://search.emarefa.net/detail/BIM-1191460
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Qian, Peng& Xu, Qianjun. Development of Embedded Element Technique for Permeability Analysis of Cracked Porous Media. Mathematical Problems in Engineering. 2017. Vol. 2017, no. 2017, pp.1-12.
https://search.emarefa.net/detail/BIM-1191460
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1191460
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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