Comparison of two 2-dimensional, laterally averaged hydrodynamic model applications to the Swan River Estuary

Kurup, Rajendra G.; Hamilton, David P.; Phillips, Robert L.

doi:10.1016/s0378-4754(99)00146-9

Cited by 32 publications

(15 citation statements)

References 13 publications

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“…It has been widely applied to long and narrow reservoirs [40][41][42][51][52][53]. It was used in this study to enhance the understanding of the thermal structure of XLDR by simulating more details of spatial and temporal temperature variations under real boundary conditions from May 2013, which was the month of XLDR's impoundment, to December 2014, after which not enough input data were available to support further model simulation.…”

Section: Two-dimensional Simulation Modelmentioning

confidence: 99%

“…Consequently, we conducted the present study by using CE-QUAL-W2 (W2), a two-dimensional laterally averaged hydrodynamic and water quality model [40]. This model works well on the simulation of stratification and density currents and has been widely used in the studies of many reservoirs and river impoundments over the world [41][42][43][44][45][46][47][48][49].…”

Section: Introductionmentioning

confidence: 99%

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Understanding the Temperature Variations and Thermal Structure of a Subtropical Deep River-Run Reservoir before and after Impoundment

Xie

Liu

Fang

et al. 2017

Water

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A two-dimensional hydrodynamic CE-QUAL-W2 model was configured for a deep subtropical river-run reservoir, the Xiluodu Reservoir (XLDR), in China to simulate water temperature in the first two years of impoundment (2013)(2014) using measured data as model input. It was calibrated using observed temperature profiles near the dam and the outflow temperatures. Observed daily temperatures at four gauging stations upstream or downstream of XLDR before (2000)(2001)(2002)(2003)(2004)(2005)(2006)(2007)(2008)(2009)(2010)(2011)(2012) and after the impoundment (4 May 2013) were analyzed and fitted with a sine function representing seasonal temperature variation. The fitted annual temperature phase shifts showed no phase delay in XLDR area before the impoundment but revealed a phase delay about 17 days between outflow and inflow after the impoundment, which was not caused by the air temperature variation. The simulated temperatures verified a similar phase delay after the impoundment. The simulated temperatures, water ages, and vertical temperature gradients demonstrated an average metalimnetic deepening rate of 0.49 m/day (average inflow~4500 m 3 /s) while the largest rate due to massive inflow (~15,000 m 3 /s) was 1.67 m/day. The W2 model was run under hypothetic scenarios of different inflow/outflow rates and outflow withdrawn elevations. The results revealed that greater inflow/outflow rate could lead to higher metalimnetic deepening rate and smaller outflow phase delay, while deeper outflow withdrawn could lead to deeper metalimnion and larger epilimnetic depth.

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Section: Two-dimensional Simulation Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Understanding the Temperature Variations and Thermal Structure of a Subtropical Deep River-Run Reservoir before and after Impoundment

Xie

Liu

Fang

et al. 2017

Water

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“…Numerical simulations were performed with a previously verified laterally averaged two-dimensional model, named CE-QUAL-W2, as a virtual laboratory (see Parsa and Etemad-Shahidi 2009). This model has been widely used in modeling of estuaries and lakes (e.g., Kurup et al 2000;Bown and Hieronymus 2003). The governing equations of the model are given in Cole and Wells (2009).…”

Section: The Present Approachmentioning

confidence: 99%

An empirical model for salinity intrusion in alluvial estuaries

Parsa

Etemad‐Shahidi

2011

Ocean Dynamics

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The main parameters that affect the salinity intrusion in estuaries are their geometric, hydrologic and hydrodynamic characteristics. The recognition of effective parameters and understanding their roles in the salinity intrusion are required for estuarine water management. In this study, the governing equations of the salinity intrusion processes were scaled to derive the effective dimensionless parameters. Then, a previously verified model, CE-QUAL-W2, was utilized as a virtual laboratory to investigate the effects of different governing parameters on the salinity intrusion. Analysis of the results showed that logarithmic functions can be used to describe the effect of dimensionless parameters obtained by scaling of governing equations. Finally, a formula was suggested to predict the salinity intrusion length based on geometrical and hydrodynamic characteristics of alluvial estuaries.

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“…They have been successfully utilized to simulate and predict the hydrodynamic and water quality in coastal water bodies (Abbaspour and Shojaee, 2009;Moshfeghi et al, 2005;Etemad-Shahidi et al, 2008. The numerical simulations were performed with a laterally averaged two-Botswana Zimbabwe South Africa N u a n e d z i R i v e r C h a n g a n e R i v e r E l e p h a n t s (Kurup et al, 2000;Bown and Hieronymus, 2003;Zahed et al, 2008;Etemad-shahidi et al, 2009). The model uses several zero-equation and two-equation turbulence closure schemes to represent vertical mixing in estuarine water bodies.…”

Section: Numerical Model Descriptionmentioning

confidence: 99%

Prediction of tidal excursion length in estuaries due to the environmental changes

Parsa

Shahidi

2010

Int. J. Environ. Sci. Technol.

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ABSTRACT:Tidal excursion is an important parameter that indicates hydraulic and mixing characteristics of estuarine environments. Prediction of the tidal excursion length provides a proper tool for environmental management of estuaries. In this study, the governing equations of the salinity transport were scaled first to recognize the effective dimensionless parameters of tidal excursion length. Then, a laterally averaged two-dimensional numerical model called CE-QUAL-W2 was used as a virtual laboratory to simulate the salinity intrusion length. Existing field data of Limpopo estuary, as a case study, was used for calibration and verification of the model and reasonable agreement was observed between the model results and the field data. Finally, the verified model was used to assess the influences of the governing parameters. The results showed that simple power functions can be used to describe the effects of dimensionless parameters obtained by scaling of the governing equations. As a result, a new formula in form of a power function was derived to predict the tidal excursion length based on the geometric and hydrodynamic characteristics of alluvial estuaries. Comparison of the computed tidal excursion lengths using the derived formula with the observed measurements in several estuaries showed the robustness of the developed formula.

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Comparison of two 2-dimensional, laterally averaged hydrodynamic model applications to the Swan River Estuary

Cited by 32 publications

References 13 publications

Understanding the Temperature Variations and Thermal Structure of a Subtropical Deep River-Run Reservoir before and after Impoundment

Understanding the Temperature Variations and Thermal Structure of a Subtropical Deep River-Run Reservoir before and after Impoundment

An empirical model for salinity intrusion in alluvial estuaries

Prediction of tidal excursion length in estuaries due to the environmental changes

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