Modelling of groundwater mound formation resulting from transient recharge

N., S.; Ramana, D. V.; Thiagarajan, S.; Manglik, A.

doi:10.1002/hyp.222

Cited by 11 publications

(5 citation statements)

References 8 publications

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“…The infiltrating water body ( Figure 20) will only extend to the water table during recharge, if the recharge interval is of sufficiently long duration. An extensive set of mathematical models have been developed (e.g., [58,61,62,64]) to allow these groundwater mounds to be determined under conditions of constant recharge or variable recharge. These groundwater mound models apply to a variety of infiltration environments, including disposal of storm water (e.g., [65]) and the analysis of mires [66].…”

Section: Comparison Of Observed Results With a Traditional Groundwatementioning

confidence: 99%

Formation and Control of Self-Sealing High Permeability Groundwater Mounds in Impermeable Sediment: Implications for SUDS and Sustainable Pressure Mound Management

Antia¹

2009

Sustainability

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A groundwater mound (or pressure mound) is defined as a volume of fluid dominated by viscous flow contained within a sediment volume where the dominant fluid flow is by Knudsen Diffusion. High permeability self-sealing groundwater mounds can be created as part of a sustainable urban drainage scheme (SUDS) using infiltration devices. This study considers how they form, and models their expansion and growth as a function of infiltration device recharge. The mounds grow through lateral macropore propagation within a Dupuit envelope. Excess pressure relief is through propagating vertical surge shafts. These surge shafts can, when they intersect the ground surface result, in high volume overland flow. The study considers that the creation of self-sealing groundwater mounds in matrix supported (clayey) sediments (intrinsic permeability = 10 -8 to 10 -30 m 3 m -2 s -1 Pa -1 ) is a low cost, sustainable method which can be used to dispose of large volumes of storm runoff (<20→2,000 m 3 /24 hr storm/infiltration device) and raise groundwater levels.However, the inappropriate location of pressure mounds can result in repeated seepage and ephemeral spring formation associated with substantial volumes of uncontrolled overland flow. The flow rate and flood volume associated with each overland flow event may be substantially larger than the associated recharge to the pressure mound. In some instances, the volume discharged as overland flow in a few hours may exceed the total storm water recharge to the groundwater mound over the previous three weeks. Macropore modeling is used within the context of a pressure mound poro-elastic fluid expulsion model in order to analyze this phenomena and determine (i) how this phenomena can be used to extract large volumes of stored filtered storm water (at high flow rates) from within a self-sealing high permeability pressure mound and (ii) how self-sealing pressure mounds (created using storm OPEN ACCESSSustainability 2009, 1 856 water infiltration) can be used to provide a sustainable low cost source of treated water for agricultural, drinking, and other water abstraction purposes.

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Section: Comparison Of Observed Results With a Traditional Groundwatementioning

confidence: 99%

Formation and Control of Self-Sealing High Permeability Groundwater Mounds in Impermeable Sediment: Implications for SUDS and Sustainable Pressure Mound Management

Antia¹

2009

Sustainability

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“…The vertical cross section of the flow system under consideration is shown in Figure 2. The water level is initially horizontal with a depth of h 0 from the bedrock and is subject to recharge from an infinite strip of width 2 L. The following assumptions are made about the flow in the aquifer (Hantush 1967;Oritz et al 1978;Basak 1979;Rao and Sarma 1984;Serrano and Workman 1998;Rai et al 2001;Korkmaz 2013).…”

Section: Mathematical Statement Of the Problem And Solutionmentioning

confidence: 99%

“…To evaluate the accuracy, we compare the GH solution of the 1-D Boussinesq equation with the solutions obtained by other researchers. Figure 3 shows a comparison of the GH solution (Equation 16) results with those of Rai's solution (Rai et al 2001) ( Figure 3A) and Korkmaz's solution (Korkmaz 2013) ( Figure 3B). The fitting results for the groundwater level change (h − h 0 ) are without obvious deviations at different time scales.…”

Section: Mathematical Statement Of the Problem And Solutionmentioning

confidence: 99%

“…In the past half century, researchers have developed both analytical and numerical methods for determining the groundwater peaks during artificial recharge and the subsequent decreases after infiltration has stopped (Hantush 1967;Singh 2012;Chipongo and Khiadani 2015). Many studies have used linearized solutions of the Boussinesq equation to calculate the water table fluctuations in response to recharge from ephemeral streams (Oritz et al 1978;Basak 1979;Rao and Sarma 1984;Serrano and Workman 1998;Rai et al 2001;Korkmaz 2013). However, most published studies use data from a single event to simulate transient conditions over a short recharge period, and systematic and multiyear observations of groundwater dynamics in ephemeral stream catchments are very rare (Shentsis and Rosenthal 2003;Carling et al 2012;Chipongo and Khiadani 2015;Cuthbert et al 2016).…”

Section: Introductionmentioning

confidence: 99%

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Simulation of Groundwater Level in Ephemeral Streams with an Improved Groundwater Hydraulics Model

et al. 2019

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As a component of arid ecosystems, groundwater plays an important role in plant growth; therefore, it is essential to use deterministic models to reconstruct the process of groundwater level change. Typically, the linearized solution of the one‐dimensional (1‐D) Boussinesq equation yields acceptable performance in simulating transient conditions over short recharge periods in ephemeral stream systems, but the ability of this solution to simulate multiyear changes in groundwater levels is limited. In this study, an improved groundwater hydraulics (GH‐D2) model is built based on the groundwater hydraulics (GH) solution of the 1‐D Boussinesq equation to simulate multiyear changes in the groundwater level in ephemeral stream systems. The model is validated in the lower reaches of the Tarim River to simulate groundwater level fluctuations within the scope of influence of the river (300, 500, 750, 1050 m) over a 16‐year period (2000 to 2015). To evaluate the performance of the models, the bias, mean absolute error, root mean squared error, Nash‐Sutcliffe efficiency (NSE), and coefficient of determination (R2) are calculated. The results show that the improved GH‐D2 model, which considers ephemeral streamflow, unsteady flow theory and the delayed response effect of groundwater level changes, performs well in simulating multiyear changes in the groundwater level in the ephemeral stream system. The observed and simulated values of the groundwater level at different river distances are consistent, and the model provides a new basis for multiyear simulations of groundwater level fluctuations in ephemeral stream systems.

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“…Since the early 1950s, several analytical solutions were developed for defining the growth and decay of groundwater mounds. These solutions consider infiltration from rectangular or circular basins with constant or transient recharging rates (Baumann, 1952;Glover, 1960;Hantush, 1967;Hunt, 1971;Marino, 1975;Latinopoulos, 1981;Warner et al, 1989;Sarma, 1981, Rai andSingh, 1996;Rai et al, 1998Rai et al, , 2001. For most of these solutions, flow from the recharge basin is assumed to be horizontal (Dupuit-Forchheimer assumption), occurring through an infinite, uniform and isotropic aquifer.…”

Section: Introductionmentioning

confidence: 99%

Artificial aquifer recharge and pumping: transient analytical solutions for hydraulic head and impact on streamflow rate based on the spatial superposition method

et al. 2021

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The behaviour of a transient groundwater mound in response to infiltration from surface basins has been studied for at least the past 80 years. Although analytical solutions are known for a large variety of situations, some common settings still lack a solution.We remind and show that integrating the line-sink solution developed for pumping an unconfined aquifer by Hantush (1964a;1965), considering the surface of the recharging area, is identical to his well-known solution for groundwater mounding below a rectangular basin (Hantush, 1967). This implies from a general standpoint that the principle of superposition can be used for directly implementing pumping wells, as well as aquifer boundaries, to a unique solution. Moreover, we show that other line-sink solutions, provided that partial differential equations behaviour is linear, can be used with a spatial superposition method for addressing a variety of hydrogeological settings.Based on this trivial principle and on existing line-sink solutions, we propose several analytical solutions able to consider a rectangular recharging area and a pumping well in an unconfined aquifer: (i) near a stream, (ii) between a stream and a no-flow boundary, with and without the influence of natural recharge, (iii) near a stream that partially penetrates the aquifer and (iv) for a multi-layer aquifer. For cases including streams, transient solutions of the impact on streamflow rate are also established.The proposed analytical solutions will be useful applications for Managed Aquifer Recharge, in particular the design of structures for artificially recharging an aquifer, possibly pumped by one or several wells.

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Modelling of groundwater mound formation resulting from transient recharge

Cited by 11 publications

References 8 publications

Formation and Control of Self-Sealing High Permeability Groundwater Mounds in Impermeable Sediment: Implications for SUDS and Sustainable Pressure Mound Management

Formation and Control of Self-Sealing High Permeability Groundwater Mounds in Impermeable Sediment: Implications for SUDS and Sustainable Pressure Mound Management

Simulation of Groundwater Level in Ephemeral Streams with an Improved Groundwater Hydraulics Model

Artificial aquifer recharge and pumping: transient analytical solutions for hydraulic head and impact on streamflow rate based on the spatial superposition method

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