Two-dimensional unsteady flow modeling of flood inundation in a leveed basin

Date

2015-01-01

Author

Carr, K.J.
Tu, T.
Ercan, Ali
Kavvas, M.L.
Nosacka, J.

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

93
views

0
downloads

© 2015 ASCE.The Cache Creek Settling Basin (CCSB) is a 14.5 square-kilometer sediment retention basin designed to trap sediment and reduce sediment loads into the Yolo Bypass. The basin, and the 13-kilometer stretch of leveed creek from the United States Geological Survey (USGS) Cache Creek at Yolo gauge (11452500) to the upstream boundary of the basin, were engineered to safely conduct flows up to 850 cubic meters per second with approximately 1-meter of freeboard. The sole purpose of the basin is to retain sediment and protect floodway capacity of the Yolo Bypass. As a retention basin, the CCSB functions by spreading incoming flow from Cache Creek over heterogeneous terrain, consequently decreasing velocity and increasing residence time within the basin. Flows discharge from the CCSB via an uncontrolled overflow weir, and a low-flow culvert, such that large outflows are not managed. Simulating the hydrodynamics of the basin, focusing on water surface elevation and inundation extent, is a vital initial step in evaluating the ability of the basin to protect floodway capacity downstream. Two-dimensional unsteady flow modeling of an extent of Cache Creek from the USGS Yolo gauge through the CCSB is presented with a focus on calibration to confidently model inundation area.

URI

https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84935039139&origin=inward
https://hdl.handle.net/11511/100398

DOI

https://doi.org/10.1061/9780784479162.156

Conference Name

World Environmental and Water Resources Congress 2015: Floods, Droughts, and Ecosystems

Collections

Department of Civil Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Two-dimensional sediment transport modeling in Cache Creek Settling Basin, California Tu, Tongbi; Carr, Kara J.; Ercan, Ali; Kavvas, M. Levent; Nosacka, John (2015-01-01) © 2015 ASCE.The Cache Creek Settling Basin (CCSB) is subject to inflows with high sediment concentration. Originally designed to protect the floodway capacity in the Yolo Bypass, current performance of the CCSB is in question following over 70 years of high sediment loads. Operation plans dictate that alterations be made to the levees and/or overflow weir in the basin when trap efficiencies are less than 30 percent. CCHE2D model, a 2D depth-averaged hydrodynamics and sediment transport model, is applied to ...
Two-Dimensional Sediment Transport Modeling under Extreme Flood at Lower Cache Creek, California Tu, Tongbi; Carr, Kara J.; Ercan, Ali; Trinh, Toan; Kavvas, M. Levent; Brown, Kevin; Nosacka, John (2017-01-01) © ASCE.Sediment transported along with extreme flooding may greatly affect flood conveyance and associated operations and management in the lower cache creek system. In this study, the relative sediment capture and transport in lower cache creek, under current bathymetric conditions and one modification alternative (2A), is evaluated. Sediment dynamics in the lower cache creek system, which includes a floodplain and settling basin, are evaluated under extreme flow events. Of particular interest is the sedim...
A reaction-transport-mechanical approach to modeling the interrelationships among gas generation, overpressuring, and fracturing: Implications for the Upper Cretaceous natural gas reservoirs of the Piceance basin, Colorado Payne, DF; Tuncay, Kağan; Park, A; Comer, JB; Ortoleva, P (2000-04-01) Predicting reservoir characteristics in tight-gas sandstone reservoirs, such as those of the Upper Cretaceous units of the Piceance basin, is difficult due to the interactions of multiple processes acting on sediments during basin development. To better understand the dynamics of these systems, a forward numerical model, which accounts for compaction, fracturing, hydrocarbon generation, and multiphase flow (BasinRTM) is used in a one-dimensional simulation of the U.S. Department of Energy's Multiwell Experi...
A process-based diagnostic approach to model evaluation: Application to the NWS distributed hydrologic model Yılmaz, Koray Kamil; Wagener, Thorsten (American Geophysical Union (AGU), 2008-09-11) Distributed hydrological models have the potential to provide improved streamflow forecasts along the entire channel network, while also simulating the spatial dynamics of evapotranspiration, soil moisture content, water quality, soil erosion, and land use change impacts. However, they are perceived as being difficult to parameterize and evaluate, thus translating into significant predictive uncertainty in the model results. Although a priori parameter estimates derived from observable watershed characteris...
Numerical investigation of hydraulic characteristics of Laleli Dam spillway and comparison with physical model study Usta, Eray; Köken, Mete; Department of Civil Engineering (2014) Spillway is a hydraulic structure that is used to pass big discharges in flood times in a controlled manner and release surplus water that cannot be safely stored in the reservoir to downstream. During the design process of the spillways, determining of hydraulic behavior of these structures is a very significant issue for an accurate and optimum design. In this thesis, the objective is to investigate the hydraulic characteristics of the flow over Laleli dam spillway numerically and compare the results with...

Citation Formats

K. J. Carr, T. Tu, A. Ercan, M. L. Kavvas, and J. Nosacka, “Two-dimensional unsteady flow modeling of flood inundation in a leveed basin,” presented at the World Environmental and Water Resources Congress 2015: Floods, Droughts, and Ecosystems, Texas, Amerika Birleşik Devletleri, 2015, Accessed: 00, 2022. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84935039139&origin=inward.