کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8895278 1629899 2017 44 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A coupled approach for the three-dimensional simulation of pipe leakage in variably saturated soil
ترجمه فارسی عنوان
یک رویکرد ترکیبی برای شبیه سازی سه بعدی نشت لوله در خاک های مختلف اشباع شده
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
چکیده انگلیسی
In urban water pipe networks, pipe leakage may lead to subsurface contamination or to reduced waste water treatment efficiency. The quantification of pipe leakage is challenging due to inaccessibility and unknown hydraulic properties of the soil. A novel physically-based model for three-dimensional numerical simulation of pipe leakage in variably saturated soil is presented. We describe the newly implemented coupling between the pipe flow simulator HYSTEM-EXTRAN and the groundwater flow simulator OpenGeoSys and its validation. We further describe a novel upscaling of leakage using transfer functions derived from numerical simulations. This upscaling enables the simulation of numerous pipe defects with the benefit of reduced computation times. Finally, we investigate the response of leakage to different time-dependent pipe flow events and conclude that larger pipe flow volume and duration lead to larger leakage while the peak position in time has a small effect on leakage.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hydrology - Volume 555, December 2017, Pages 569-585
نویسندگان
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