Modeling of Infiltration from Trenches for Storm‐Water Control

Duchene, Michael; McBean, Edward A.; Thomson, Neil R.

doi:10.1061/(asce)0733-9496(1994)120:3(276)

Cited by 40 publications

(15 citation statements)

References 10 publications

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“…Several studies have analyzed the impact of stormwater infiltration on infiltration rates, groundwater mounding and groundwater table focusing on the impact of single systems. Duchene et al (1994) presented a numerical model based on Richards'equation to simulate infiltration from infiltration trenches. Bouwer (2002) described the main processeses affecting the performance of different infiltration systems, and Guo (1998) presented a steady-state surface-subsurface model to design trench infiltration basins.…”

Section: Introductionmentioning

confidence: 99%

Hydrologic impact of urbanization with extensive stormwater infiltration

Locatelli

Mark

Mikkelsen

et al. 2017

Journal of Hydrology

119

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This paper presents a novel modeling analysis of a 40-year-long dataset to examine the impact of urbanization, with widespread stormwater infiltration, on groundwater levels and the water balance of a watershed. A dataset on the hydrologic impact of urbanization with extensive stormwater infiltration is not widely available, and is important because many municipalities are considering infiltration as an alternative to traditional stormwater systems. This study analyzes groundwater level observations from an urban catchment located in Perth, Western Australia. The groundwater observation data cover approximately a 40-year-long period where land use changes (particularly due to urbanization) occurred; moreover, the monitored area contains both undeveloped and urbanized areas where stormwater infiltration is common practice via soakwells (shallow vertical infiltration wells). The data is analyzed using a distributed and dynamic hydrological model to simulate the groundwater response. The model explicitly couples a soakwell model with a groundwater model so that the performance of the soakwells is reduced by the increase of groundwater levels. The groundwater observation data is used to setup, calibrate and validate a coupled MIKE SHE-MIKE URBAN groundwater model and the model is used to quantify the extent of groundwater rise as a result of the urbanization process. The modeled urbanization processes included the irrigation of new established private and public gardens, the reduction of evapotranspiration due to a decrease in green areas, and the development of artificial stormwater infiltration. The study demonstrates that urbanization with stormwater infiltration affects the whole catchment water balance, increasing recharge and decreasing evapotranspiration. These changes lead to a rise in the groundwater table and an increase in the probability of groundwater seepage above terrain. Highlights  Monitoring data and model used to analyze the hydrologic impact of urbanization  Groundwater observations used to calibrate a model of urban stormwater infiltration  Local stormwater infiltration increases groundwater levels throughout a catchment  Urbanization reduces evapotranspiration from shallow aquifers  Urbanization alters the water balance and can lead to increased groundwater levels View publication stats View publication stats

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Section: Introductionmentioning

confidence: 99%

Hydrologic impact of urbanization with extensive stormwater infiltration

Locatelli

Mark

Mikkelsen

et al. 2017

Journal of Hydrology

119

View full text Add to dashboard Cite

show abstract

“…It may have potential applications for the simulation of irrigation furrows, ephemeral streams or where the simulation of 2D ponding is required and steep wetting fronts or coarse-grained soils occur. One-dimensional models commonly used for simulating stormwater infiltration systems have been shown to be relatively inaccurate for the simulation of stormwater infiltration trenches (Duchene et al, 1994). The model developed in this study allows a 2D approach that takes antecedent moisture conditions into account to be applied.…”

Section: Discussionmentioning

confidence: 99%

“…Boundary conditions are also difficult as inclusion of the storage within the model may introduce numerical difficulties whereas exclusion produces a complex boundary condition. In one study, Duchene et al (1994) compared a simple 1D model that uses Darcy's law with a unit hydraulic gradient to calculate 1D saturated infiltration through the bottom and sides of the trench separately, with a 2D finite element model. Both were only applied for constant water level conditions in a stormwater infiltration trench.…”

Section: Introductionmentioning

confidence: 99%

A two‐dimensional model of hydraulic performance of stormwater infiltration systems

Browne

Deletić

Mudd

et al. 2012

Hydrological Processes

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Stormwater infiltration systems are a popular method for urban stormwater control. They are often designed using an assumption of one‐dimensional saturated outflow, although this is not very accurate for many typical designs where two‐dimensional (2D) flows into unsaturated soils occur. Available 2D variably saturated flow models are not commonly used for design because of their complexity and difficulties with the required boundary conditions. A purpose‐built stormwater infiltration system model was thus developed for the simulation of 2D flow from a porous storage. The model combines a soil moisture–based model for unsaturated soils with a ponded storage model and uses a wetting front‐tracking approach for saturated flows. The model represents the main physical processes while minimizing input data requirements. The model was calibrated and validated using data from laboratory 2D stormwater infiltration trench experiments. Calibrations were undertaken using five different combinations of calibration data to examine calibration data requirements. It was found that storage water levels could be satisfactorily predicted using parameters calibrated with either data from laboratory soils tests or observed water level data, whereas the prediction of soil moistures was improved through the addition of observed soil moisture data to the calibration data set. Copyright © 2012 John Wiley & Sons, Ltd.

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“…where H = depth of the water in the trench; and the other parameters are as in (1) and (2). • Infiltration through trench sides: According to experimental and computational results of other researchers, approximately 1/4 of the water infiltrates from a trench through its sides and 3/4 through the bottom (Duchene et al 1994). The computed infiltration through the bottom was therefore multiplied by 4/3.…”

Section: Fig 1 Basic Components Of Hydrologic Processes In Urban Camentioning

confidence: 99%

Water-Sensitive Urban Planning: Modeling On-Site Infiltration

Kronaveter

Shamir

Kessler

2001

J. Water Resour. Plann. Manage.

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A hydrological micromodel was developed and applied to a neighborhood typical of urban development on Israel's coastal plain, over the phreatic coastal aquifer. The model was used for analyzing the effects of urban development on infiltration and runoff, and for evaluating a number of practices designed to enhance on-site infiltration. The effect of spatial resolution in the model on computed results was investigated. It was shown that for the range of data examined, simulation at the micro-(residential lot) level can be extrapolated to the neighborhood scale, by adding the responses of the individual microunits. Simulations by the hydrological micromodel showed that connecting roof drains to a yard/garden, and allowing the runoff from the roof to infiltrate through an ''infiltration strip'' or infiltration trench of an appropriate size, can increase infiltration over a residential lot as much as 18% of the annual rainfall (depending on the soil conductivity and annual rainfall). The dependence of annual infiltration on physical and planning parameters was generalized in functional relations that can be used to assess the effectiveness of measures for increasing infiltration and reducing runoff. This work was part of an effort to develop, test, and recommend policies and practices for water-sensitive urban planning for protecting water resources.

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Modeling of Infiltration from Trenches for Storm‐Water Control

Cited by 40 publications

References 10 publications

Hydrologic impact of urbanization with extensive stormwater infiltration

Hydrologic impact of urbanization with extensive stormwater infiltration

A two‐dimensional model of hydraulic performance of stormwater infiltration systems

Water-Sensitive Urban Planning: Modeling On-Site Infiltration

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