Abolfazl Akbarpour

• Professor
• University of Birjand

کتاب حاضر با تمرکز بر عدالت و پایداری، به بازاندیشی مفهومی و نظریه پردازی در باب قوانین و حکمرانی آبهای زیرزمینی می پردازد. در کنار اصول حقوقی، بررسی عواملی که بر شیوه های رایج مدیریت آبهای زیرزمینی اثر می گذارند، از جمله بحران آب، دانش محلی، ارتباطات منابع آبی و نقش دولت، حائز اهمیت است. یافته های این کتاب مبنای بازاندیشیِ حقوق و حکمرانی آب های زی...

Groundwater resources are facing unprecedented pressures due to overexploitation and contamination. Effective management necessitates robust tools for understanding and predicting groundwater behavior. Numerical simulation models have emerged as indispensable instruments in this regard. This study employs a bibliometric analysis to explore research...

Groundwater aquifers are the main source of water for billions of people living in arid and semi-arid regions. Major changes in rainfall, groundwater pumping and feeding, and severe soil erosion, floods, and droughts are among the most noticeable consequences of climate change. All this complicates the challenge of conserving groundwater resources...

امروزه آلودگی آب‌های زیرزمینی به یک مشکل جدی زیست‌محیطی تبدیل گردیده‌‌است. ازطرفی تغییرات اقلیم، کیفیت آبخوان‌ها را تحت تأثیر قرار می‌دهد. نتایج نشان دادند که کیفیت منابع آب زیرزمینی در طول زمان دچار تغییر شده و کاتیون‌های مانند آرسنیک و کروم و آنیون‌هایی چون جیوه، فلوراید و نیترات و غیره در منابع آب نفوذ پیداکردند. تحقیقات نشان می‌دهد روش‌های مختل...

Today, quality monitoring of water resources played an influential role in its exploitation and use. Water sources usually contain heavy metals in minor concentrations. The research showed various methods of removing heavy metals in aqueous solutions, such as chemical reduction, ion exchange, adsorption, etc. Hence, the widespread applications of n...

The structural health of a pipeline is usually assessed by visual inspection. In addition to the fact that this method is expensive and time consuming, inspection of the whole structure is not possible due to limited access to some points. Therefore, adopting a damage detection method without the mentioned limitations is important in order to incre...

امروزه پایش کیفی منابع آب در بهره برداری و استعمال آن نقش تأثیرگذاری دارد. نتایج تحقیقات نشان می دهد روش های مختلفی برای از بین بردن فلزات سنگین موجود در محلول های آبی از جمله رسوب شیمیایی، تبادل یونی، جذب، فیلتراسیون غشایی و غیره وجود دارد که در این میان کاربرد های گسترده ی علم نانو درکاهش آلاینده ها در منابع آب شناخته شده است. از این رو در مطالعه...

In this research, a simulation–optimization (S/O) model is used in order to estimate aquifer parameters on two aquifers. In this model, meshless local Petrov–Galerkin (MLPG) is used for simulation purpose and modified teaching–learning-based optimization (MTLBO) algorithm is engaged as optimization model. Linking these two powerful models generates...

The efficiency of groundwater remediation by pump-and-treat (PAT) method is affected by several components. The most important of these components include the pumping wells location, pumping rate, and remediation period. In this research, hybrid optimization-simulation models were developed to find the appropriate groundwater remediation strategy b...

Today, eco‐friendly and cost‐effective nanomaterials are vital to ultimately removing contaminants from groundwater as an essential part of freshwater. In this study, polyvinylpyrrolidone (PVP)‐stabilized nano zero‐valent iron (nZVI) supported by hydrophilic wheat straw biochar (HWS) (PVP‐nZVI@HWS) was prepared and compared with the nZVI‐HWS sample...

This study intends to investigate the impacts of scheme type, time step, and error threshold on the stability of numerical simulation in the groundwater modeling. Hence, a two-dimensional finite element (FE) was implemented to simulate groundwater flow in a synthetic test case and a real-world study (Birjand aquifer). To verify the proposed model i...

One of the critical issues in surface water resources management is the optimal operation of dam reservoirs. In recent decades, meta-heuristics algorithms have gained attention as a powerful tool for finding the optimal program for the dam reservoir operation. Increasing demand due to population growth and lack of precipitation for reasons such as...

The construction of injection wells is one of the direct methods of artificial recharge and determining their optimal location is one of the important issues that are discussed in the topics of projects related to the rehabilitation of aquifers. In this research, a simulation–optimization model was proposed to determine the optimal location of inje...

Groundwater pollution is one of the most important challenges for human. In many parts of the world, groundwater is used for agriculture and even drinking, whereas natural and human-made groundwater contaminants have also affected the quality of these waters. Therefore, monitoring and evaluating the quantity and quality of groundwater is very impor...

As the groundwater quantitative monitoring aimed to determine the factors affecting the aquifer behavior plays an important role in its regional management, studying the temporal and spatial groundwater level variations requires a comprehensive monitoring network. Effort has been made in this study to introduce a new linked simulation–optimization...

Groundwater estimation to be aware of groundwater level and its decline, as well as the well discharge rate in different time periods, is one of the important and practical issues in the field of groundwater level management and abstraction management. Quantitative information on groundwater resources is essential to manage those best and to propos...

Currently, one of the solutions to improve the decline in the water table of aquifers due to their uncontrolled extraction is artificial recharge schemes, especially in arid and semi-arid regions. The present study applies a Nonuniform Rational B-Spline functions (NURBS) based Isogeometric method to investigate the effects of injection well on risi...

Determination of wells’ capture zones is one of the most remarkable issues that should be carried out in each aquifer. Methods used for depicting this area has been divided into two simple and complex method. Through the simple one several mathematical equations are used and in the complex approaches, numerical models are applied. In this study, th...

Pollution of surface water especially rivers has created serious problems for both human health and environment. Due to the severe shortage of surface water resources and their pollution, it is very important than ever to plan wisely how to use water resources, especially in areas that consume more water, like drinking water, agriculture, and indus...

This study is an attempt to investigate and analyze uncertainty through the Glue method in parts of Tabriz, Iran, using the SWMM urban flood model. In order to quantify the uncertainty, the initial range of input parameters including curve number, impenetrability percentage, penetrability level’s coarseness coefficient, and impenetrability level’s...

The complicated behavior of groundwater system in an arid aquifer is generally studied by solving the governing equations using either analytical or numerical methods. In this regard, analytical methods are just for some aquifers with regular boundaries. Numerical methods used for this aim are finite difference (FDM) and finite element methods (FEM...

In recent decades, due to the population growth and low precipitation, the overexploitation of ground water resources has become an important issue. To ensure a sustainable scheme for these resources, understanding the behavior of the aquifers is a key step. This study takes a numerical modeling approach to investigate the behavior of an unconfined...

In the present study, the optimal place to excavate extraction wells as the drawdown is minimized was investigated in a real aquifer. Meshless local Petrov–Galerkin (MLPG) method was used as the simulation method. The closeness of its results to the observational data compared to the finite difference solution showed the higher accuracy of this met...

Growing demands in arid regions have increased groundwater vulnerabilities necessitating appropriate modeling and management strategies to understand and sustain aquifer system behaviors. Sustainable management of aquifer systems, however, requires a proper understanding of groundwater dynamics and accurate estimates of recharge rates which often c...

The present study employs a mathematical method, i.e., Particle Filter (PF), to accurately estimate the parameters of three standard aquifers. The method is linked to a new developed numerical method, i.e., meshless local Petrov-Galerkin based on the moving kriging method (PF-MLPG-MK), to determine the aquifer parameters such as hydraulic conductiv...

Gray water is a great resource for replacing fresh water to be used in standardized usages. The use of treated gray water reduces water consumption and the entry of pollutants into the environment. However, if left untreated, it can be dangerous. The present study examines the efficiency of a gray water treatment system consisting of primary filter...

Gray water is a great resource for replacing fresh water to be used in standardized usages. The use of treated gray water reduces water consumption and the entry of pollutants into the environment. However, if left untreated, it can be dangerous. The present study examines the efficiency of a gray water treatment system consisting of primary filter...

Having the exact values of boundary conditions is one of the effective way to develop precise groundwater models. In the present study, the exact value of constant head boundaries in Birjand aquifer is specified with the usage of particle filter linked to meshless groundwater model. Particle filter known as one of the common data assimilation metho...

Having a pervasive knowledge about the groundwater balance conducts the engineers and managers to have an optimal management about these resources. In the present study, with using meshless local Petrov-Galerkin, one of the meshless methods in the field of fluid dynamic, groundwater balance is computed for a real field aquifer. The independency of...

Pollution of water resources particularly surface water and rivers may affect human health and the environment seriously. So it is essential to find an efficient solution to control the pollution at rivers in order to reduce damages for consumers and protect the environment. At this research, a mathematical model is proposed to manage pollutant ent...

An optimal pumping policy ensures the sustainability of groundwater resources when groundwater is extracted. In this paper, several simulation models (genetic algorithms, particle swarm optimization and firefly algorithm) are used to evaluate optimal pumping policy in an hypothetical aquifer. In this study, the level of groundwater in an unconfined...

In this research, a simulation-optimization model is utilized to determine the optimum location of wells on two unconfined aquifers (steady condition and transient state) with different boundary conditions. Meshless local Petrov-Galerkin (MLPG) and particle swarm optimization (PSO) are employed for the simulation model and optimization algorithm, r...

In this study capture zones of wells for the first time is determined and depicted with using a numerical method. Meshless local Petrov-Galerkin is one of the meshless methods which is not used in this field. In this article groundwater flow is simulated by using MLPG method in confined aquifer which has four extraction wells in transient state and...

The prediction of groundwater level fluctuations is one of the most remarkable issues in water resources management, especially in arid and semiarid regions. The present study uses a numerical meshless method, named meshless local Petrov-Galerkin, to predict the groundwater level over a ten-year period. This method makes up for the shortcomings of...

Understanding of the fate of temporal and spatial distribution of pollutionis an essential subject for prediction of damages, caused by pollution, on the ecology of rivers and coastal areas. It is also necessary to provide efficient solutions for both pollution control and environmental protection. In this study, shallow water equations have been u...

Solving the governing equations of a system is the most important issues that is always discussed in science and engineering fields. Since there are few equations that have analytical solution, many numerical methods have been proposed for solving the equations that have no analytical solutions. Numerical methods are developed by the advent of comp...

Water of Baladeh's qanats travels around 15 Kilometers to arrive the lands in Ferdows by a channel. Farmers in order to reduce seepage in transition channels try to make the water muddy. In this research, with measuring seepage in both muddy water and pure water channels, the effects of making muddy water in seepage are investigated. The Seepage in...

In recent decades, groundwater flow modeling is required due to reduced rainfall and the management of water resources and predictions. In these models, a differential equation is considered for the whole system which can be soled by several numerical methods such as finite difference, finite element method, and meshless method. Recently, a newer m...

در دهه های اخیر به دلیل کاهش بارندگی و به¬منظور مدیریت منابع آب و پیش¬بینی¬های لازم، نیاز به مدل¬سازی جریان آب زیرزمینی می¬باشد. در این مدل¬ها برای کل سیستم، یک رابطه دیفرانسیل در نظر گرفته می¬شود و توسط روش¬های عددی متعددی مانند تفاضل محدود، روش اجزای محدود و روش بدون مش حل می¬گردد. اخیرا از روش جدیدتری به نام روش تحلیل ایزوژئومتریک استفاده میشود....

In recent decades, due to reduction in precipitation, groundwater resource management has become one of the most important issues considered to prevent loss of water. Many solutions are concerned with the investigation of groundwater flow behavior. In this regard, development of meshless methods for solving the groundwater flow system equations in...

The complex behavior of the aquifer system is studied by solving a set of governing equations using either analytical or numerical methods. Numerical techniques like finite difference method (FDM) are being used to solve differential equation in some simple cases. Recently Meshless methods are being developed in engineering fields. They are used fo...

Despite advanced development in computational techniques, the issue of how adequately calibrate and minimize misfit between system properties and corresponding measurements remains a challenging task in groundwater modeling. Two important features of the groundwater regime, hydraulic conductivity (k) and specific yield (Sy) that control aquifer dyn...

In shallow river, regardless of the vertical acceleration against gravity acceleration, great simplifying will be created in equations that the result of them are shallow water equations. In this study shallow water equation has been used to simulate transport of pollution in 2D limited volumes method. In this method it is possible to turn differen...

In shallow river, regardless of the vertical acceleration against gravity acceleration, great simplifying will be created in equations that the result of them are shallow water equations. In this study shallow water equation has been used to simulate transport of pollution in 2D limited volumes method. In this method it is possible to turn differen...

This study presents the first attempt that linked the multi-algorithm genetically adaptive search method (AMALGAM) proposed by Vrugt and Robinson (2007) with a groundwater model to define pumping rates within a well-distributed set of Pareto solutions. The pumping rates along with three minimization objectives, i.e. minimizing shortage affected by...

The paper deals with the reliability–based design optimization (RBDO) of concrete gravity dams subjected to earthquake load using subset simulation. The optimization problem is formulated such that the optimal shape of concrete gravity dam described by a number of variables is found by minimizing the total cost of concrete gravity dam for the given...

Gravity current is one of the most important factors in the deposition and reservoirs useful life reducing. The progressive section (forehead of gravity current) is an important part of this process which is influenced by many factors. In the present research, behavior of the forehead of saline density currents flowing over artificial vegetation wa...

This study focuses on the shape optimization of concrete gravity dams considering dam–water–foundation interaction and nonlinear effects subject to earthquake. The concrete gravity dam is considered as a two–dimensional structure involving the geometry and material nonlinearity effects. For the description of the nonlinear behavior of concrete mate...

The main aim of this study is to introduce optimal design of homogeneous earth dams with oblique and horizontal drains based on particle swarm optimization (PSO) incorporating weighted least squares support vector machine (WLS–SVM). To achieve this purpose, the upstream and downstream slopes of earth dam, the length of oblique and horizontal drains...

Uncertainty assessment of groundwater modeling is important for sustainable groundwater management and planning. The purpose of this study is to assess parameter uncertainty of groundwater modeling in the Birjand plain, Iran. This arid aquifer was modeled using MATLAB-based MODFLOW to avoid propagating uncertainty associated with hydraulic conducti...

Ghanats are water structures of Iranian invention. Groundwater extraction is transferred by Ghanat, with the force of gravity and from underground and away from the evaporation. Structure of Ghanats created in Iran was changed from the used state to unused state, and the resistant structures or Kaval were used in order to prevent the destruction of...

According to the World Health Organization (WHO), drinking water is water that is suitable for human consumption and all household uses. Ensuring the quality of water at the point of consumption by the standards is one of the obligations of water and wastewater companies as the legal custodian of urban and rural water distribution. Groundwater poll...

Today, access to safe water resources and quality is one of the most important challenges for governments and nations. The increasing population and human activities require more water while the water on Earth is fixed. Groundwater as one of the main sources of drinking water supplies and agriculture, especially in arid and semi-arid regions has be...

There is a wide agreement in the international scientific society that climate change will modify climatic variables. Atmosphere-Ocean General Circulation Model (AOGCM) is an appropriate model to produce climatic scenarios. The first step to climate change studies is currently using the most appropriate AOGCM output. In this study, AOGCM's for a ti...