Use of River2D Hydrodynamic Model for Stream Restoration Assessment and Design

Schwartz, John S.; Neff, Keil J.

doi:10.1061/41173(414)269

Cited by 3 publications

(2 citation statements)

References 20 publications

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“…Although as all twodimensional models, River-2D is inherently a transient model, it has a built-in numerical procedure that allows one to speed-up the reaching of steady-state conditions. The software is widely used by the scientific community (e.g., [67][68][69]).…”

Section: The Hydraulic Modelmentioning

confidence: 99%

Rewinding the Tape: Documentary Heritage to (Re)discover “Lost” Natural Hazards—Evidence and Inferences from Southern Italy

Gizzi,

Bovolin,

Villani

et al. 2024

Sustainability

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The knowledge of natural hazards that occurred in the past is essential for implementing forecasting and prevention actions, for managing risk, and identifying proper land use. Floods do not escape this rule. This article sheds light on an unknown intense rainfall period, which affected the Campania region and the territory of the current Molise region (Southern Italy) on October–November 1961. The period culminated in floods, particularly involving the town of Benevento (Campania region), which had been affected by several inundations over centuries. The research made an extensive use of unpublished archival sources. The documents allowed us to both outline the pluviometric and hydrological picture of the period and catalogue seventeen physical and environmental effects suffered by over two hundred municipalities. Furthermore, we also disclosed the economic consequences in the wide territory involved. Special attention was paid to Benevento, for which we also drew up the scenario map related to the 19 October flood. For this town, historical data were effective for developing and testing the hydraulic model of the Sabato and Calore Rivers, which overflowed at the site. In this regard, we made some considerations on the current flood risk of the town. From a methodological point of view, we stress the importance of a historical approach in close relationship to other expertise for the knowledge of natural hazards, tracing also some future perspectives. The research complies with the 2030 Agenda for Sustainable Development and its Goal 11 concerned with making cities and human settlements inclusive, safe, resilient, and sustainable. The research findings will be useful for scholars and practitioners for both improving flood hazard models and arranging archival research path. Finally, local authorities in charge of risk mitigation can also benefit from the research results.

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Section: The Hydraulic Modelmentioning

confidence: 99%

Rewinding the Tape: Documentary Heritage to (Re)discover “Lost” Natural Hazards—Evidence and Inferences from Southern Italy

Gizzi,

Bovolin,

Villani

et al. 2024

Sustainability

View full text Add to dashboard Cite

show abstract

“…In addition to the dominant flow processes, field conditions such as domain topography and vegetation, boundary conditions, and simulation duration affect model applicability, and should be carefully considered when applying a numerical model (Wu, ). Two‐dimensional models have been frequently used to aid instream restoration, contaminant and sediment transport, dam failure analysis, and flood inundation mapping (Schwartz and Neff, ; Jung et al ., ; Zhu, ; Kouassi et al ., ; Tsakiris and Bellos, ; Haltas et al ., ; Kalita, ). Representation of field conditions by numerical simulation is, however, limited by the simplifying assumptions required by numerical approximation schemes, and by the availability of calibration and validation data.…”

Section: Introductionmentioning

confidence: 99%

Evaluating the Applicability of a Two‐dimensional Flow Model of a Highly Heterogeneous Domain to Flow and Environmental Management

Carr

Ercan

et al. 2017

J American Water Resour Assoc

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Two‐dimensional simulation of highly heterogeneous domains, especially those with disparate length scales, roughness conditions, and geometries, often leads to challenges such as long computation times and numerical instability. Simulation of challenging domains is often needed to guide flood management and environmental regulation agencies in operation and potential domain modifications. This work evaluates the ability of a two‐dimensional unsteady hydrodynamic model to represent long‐duration transient flows over a domain with highly heterogeneous roughness, geometric characteristics, and length scales through bed roughness representation. The domain includes 13 km of Cache Creek and the 14.5 km2 Cache Creek Settling Basin, which traps both sediment and mercury. Calibration under different bed roughness methods, validation, and modeling results of bathymetric modification scenarios are presented. The modeling approach's performance supports its application as a tool for management of similar domains, such as settling basins, leveed floodplains, and reservoirs. Accurate representation of flow dynamics can also inform environmental management that involves transport of sediments, nutrients, and heavy metals. This study found that a two‐dimensional unsteady flow model can accurately represent long‐duration transient flow in a large settling basin with highly heterogeneous characteristics without parsing of the domain or flow events simulated.

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Rivers under Ice: Evaluating Simulated Morphodynamics through a Riffle-Pool Sequence

Smith

Cockburn

Villard³

2023

Water

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Modeling in ice-covered rivers is limited due to added computational complexity, specifically challenges with the collection of field calibration data. Using River2D, a 2-dimensional hydrodynamic modeling software, this study simulates depth-averaged velocity and shear stress distributions under ice cover and in open-water conditions during varying flow conditions in a small, shallow riffle-pool sequence. The results demonstrated differences in velocity distribution throughout the channel and increases in discharge were found to impact the velocity magnitude under ice cover, while the spatial distribution remained consistent. A recirculating eddy found along the pool’s left bank was exacerbated under ice cover, with potential implications for silver shiner habitat suitability. Bed shear stress magnitude did not vary significantly between ice and open water, although the spatial distribution differed notably. Model validation demonstrated success in simulating water depth and velocities, and the shear stress was estimated within a reasonable margin. Using hydrodynamic models provides valuable insight into seasonal changes in velocities and shear stress when ice is present.

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Use of River2D Hydrodynamic Model for Stream Restoration Assessment and Design

Cited by 3 publications

References 20 publications

Rewinding the Tape: Documentary Heritage to (Re)discover “Lost” Natural Hazards—Evidence and Inferences from Southern Italy

Rewinding the Tape: Documentary Heritage to (Re)discover “Lost” Natural Hazards—Evidence and Inferences from Southern Italy

Evaluating the Applicability of a Two‐dimensional Flow Model of a Highly Heterogeneous Domain to Flow and Environmental Management

Rivers under Ice: Evaluating Simulated Morphodynamics through a Riffle-Pool Sequence

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