Computational Hydraulics and River Engineering Laboratory
Contact: 520-626-5946 (tel)
Email: gduan@email.arizona.edu
NSF CAREER: Integrated experimental and numerical investigation of non-uniform sediment transport in meandering channels
Research Project
DOD Terrestrial Science Program: Experimental and numerical simulations of turbulent flow field over a series of groynes
USDA Agriculture Research Service: Simulation of unsteady flow, sediment transport, and infiltration over irrigation furrows
The project aims to study meandering channel evolution through laboratory experiment and numerical simulations. Innovative particle tracking method is used to measure sediment transport, and advanced numerical method is implemented in CHRE1D and CHRE2D for simulating flow hydrodynamics and meandering evolution.
Computational Hydraulics and River Engineering Laboratory have conducted many research projects funded by the federal, state, and local governmental agencies. This projects include experimental studies, numerical simulations, field monitoring, and consulting engineering research for designs. Below are selected projects:
One dimensional hydrodynamic and sediment transport model (CHRE1D) was developed for simulating flow, sediment transport, and infiltration rate during an unsteady flow event in irrigation furrows. The project assists USDA to improve the simulation model for furrow irrigation management.
Experiments were conducted at the CHRE laboratory to mimic the series of groynes in Pool 18 upstream of Lock and Dam 18 in the Mississippi River. Numerical simulation of flow and sediment transport field at the Huron Island reach using the Cartesian cut-cell method showed CHRE2D model is capable of simulating flow hydrodynamics and sediment transport in complex terrains (e.g., bifurcation, structures).
Pima County Regional Flood Control District: Modeling sediment transport in the Patano Wash, the Rillito, and the Santa Cruz River
This project is a part of team effort to study ecosystem sustainability in Arid and semi-Arid region under changing climate and increasing population led by Professor Thomas Meixner. The role of CHRE is to study the impacts of vegetation on flow hydraulics and sediment transport.
NSF Water and Climate Sustainability Program: Impacts of vegetation on flow and sediment transport in alluvial rivers
Sediment transport models for the Patano Wash, the Rillito River, and the Santa Cruz River were developed to quantify bed degradation/aggradation rate in recent years. Those models are assisting engineers to better river management decisions.
Pima County Department of Transportation: Sediment transport and local scour analysis at the proposed Sunset bridge site in Tucson, AZ
Sediment transport models for the Rillito and the Santa Cruz rivers are developed to study local scour at the proposed Sunset bridge sites. based on numerical simulation results, appropriate counter scour measures will be proposed for the bridge site.
