نتایج جستجو برای: modflow

تعداد نتایج: 666  

2010
Kaili Wang Guanhua Huang

The impact of permeability on solute transport process in a highly heterogeneous aquifer was analyzed using the Monte-Carlo method. The logarithm of the permeability (lnK) of aquifer was considered as a non-stationary field with increments being a truncated fractional Lévy motion (fLm) generated using the SRA3DC code. MODFLOW and MT3DMS code were used to solve the flow and solute equations, res...

Journal: :Ground water 2009
Tom Clemo Warren Barrash Edward C Reboulet Timothy C Johnson Carsten Leven

This paper describes a combined field, laboratory, and numerical study of electromagnetic borehole flowmeter measurements acquired without the use of a packer or skirt to block bypass flow around the flowmeter. The most significant finding is that inflow through the wellbore screen changes the ratio of flow through the flowmeter to wellbore flow. Experiments reveal up to a factor of two differe...

ژورنال: :زمین شناسی کاربردی پیشرفته 2015
لاله نوذرپور منوچهر چیت سازان آرش ندری معصومه فرهادی منش

مدیریت صحیح و منطقی منابع آب، نیازمند شناخت ارتباط متقابل منابع سطحی وزیرزمینی می­باشد. در این تحقیق جهت بررسی تبادلات آبخوان لور-اندیمشک و رودخانه دزاز مدل modflow استفاده گردید. ابتدا جریان آب­های زیرزمینی دشت لور-اندیمشک توسط مدل modflow، در حالت ماندگار شبیه سازی گردید. سپس با استفاده از داده­های مربوط به مهر 1388 تا شهریور 1389، جریان آبخوان در حالت ناپایدار واسنجی و در دوره­ی شش ماهه صحت­...

Journal: :E3S web of conferences 2021

The study was conducted as part of a project to develop an automation system for monitoring groundwater in the city Urgench. possibilities modeling and forecasting MODFLOW were studied. According results, regularities level behavior Urgench revealed. survey, direction movement shifts northwesterly slope 0.0008. geophilized model, its high-traffic zone is located at depth 10-15 m, from 4-5 m per...

Journal: :Water 2021

In large-scale regional models, used for the management of underground resources, it is quite common to find that relationships between aquifer and small wetlands are not included. These models do consider this connection because amount water involved, but they should potential significant ecological impacts if groundwater resources in ecosystems associated with these mismanaged. The main objec...

Journal: :IOP Conference Series: Materials Science and Engineering 2016

Journal: :Water 2022

Urbanization is a worldwide process that recently has culminated in wider use of the subsurface, determining significant interaction between groundwater and underground infrastructures. This can result infiltrations, corrosion, stability issues for subsurface elements. Numerical models are most applied tools to manage these situations. Using MODFLOW-USG combining Wall (HFB) DRN packages, this s...

Journal: :Sustainability 2022

Groundwater is a primary source of freshwater provisions all around the world. Due to its limited availability, water has become precious entity nowadays. The future accessibility groundwater endangered due massive exploitation, particularly in irrigation sector. Therefore, current study was conducted assess declining levels Rechna Doab, Punjab, Pakistan, where aquifer been reported be highly s...

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