Simulation Analysis on Water’s Micro Seepage Laws under Different Pressure Gradients Using Computed Tomography Method
المؤلفون المشاركون
Zhou, Gang
Qiu, Lei
Zhang, Wenzheng
Xue, Jiao
المصدر
العدد
المجلد 2018، العدد 2018 (31 ديسمبر/كانون الأول 2018)، ص ص. 1-26، 26ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2018-09-06
دولة النشر
مصر
عدد الصفحات
26
التخصصات الرئيسية
الملخص EN
The aim of this paper was to develop a model that can characterize the actual micropore structures in coal and gain an in-depth insight into water’s seepage rules in coal pores under different pressure gradients from a microscopic perspective.
To achieve this goal, long-flame coals were first scanned by an X-ray 3D microscope; then, through a representative elementary volume (REV) analysis, the optimal side length was determined to be 60 μm; subsequently, by using Avizo software, the coal’s micropore structures were acquired.
Considering that the porosity varies in the same coal sample, this study selected four regions in the sample for an in-depth analysis.
Moreover, numerical simulations on water’s seepage behaviors in coal under 30 different pressure gradients were performed.
The results show that (1) the variation of the simulated seepage velocity and pressure gradient accorded with Forchheimer’s high-velocity nonlinear seepage rules; (2) the permeability did not necessarily increase with the increase of the effective porosity; (3) in the same model, under different pressure gradients, the average seepage pressure decreased gradually, while the average seepage velocity and average mass flow varied greatly with the increase of the seepage length; and (4) under the same pressure gradient, the increase of the average mass flow from the inlet to the outlet became more significant under a higher inlet pressure.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Zhou, Gang& Qiu, Lei& Zhang, Wenzheng& Xue, Jiao. 2018. Simulation Analysis on Water’s Micro Seepage Laws under Different Pressure Gradients Using Computed Tomography Method. Advances in Civil Engineering،Vol. 2018, no. 2018, pp.1-26.
https://search.emarefa.net/detail/BIM-1115837
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Zhou, Gang…[et al.]. Simulation Analysis on Water’s Micro Seepage Laws under Different Pressure Gradients Using Computed Tomography Method. Advances in Civil Engineering No. 2018 (2018), pp.1-26.
https://search.emarefa.net/detail/BIM-1115837
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Zhou, Gang& Qiu, Lei& Zhang, Wenzheng& Xue, Jiao. Simulation Analysis on Water’s Micro Seepage Laws under Different Pressure Gradients Using Computed Tomography Method. Advances in Civil Engineering. 2018. Vol. 2018, no. 2018, pp.1-26.
https://search.emarefa.net/detail/BIM-1115837
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1115837
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر