Adaptive Time Stepping–Operator Splitting Strategy to Couple Implicit Numerical Hydrodynamic and Water Quality Codes
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Volume 138, Issue 9
Abstract
Hydrodynamic and water quality codes have been frequently linked. These have typically been linked with both the hydrodynamic and water quality models using similar explicit time steps, but for long-term simulations implicit models are required. The water quality codes linked to these hydrodynamic codes are forced to perform their computations using the hydrodynamic time step even though utilizing the same might result in drifting of the water quality solution. This technical note presents the development and testing of an operator splitting–derived method for linking hydrodynamic and water quality codes with adaptive time stepping. The resulting method provides high-fidelity solutions that compare well with analytic solutions and lends itself for extension to various other transported quantities.
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Acknowledgments
The experiments described and the results presented were obtained from research sponsored by the System Wide Water Resources Program (SWWRP) of the U.S. Army Engineer Research and Development Center, Coastal and Hydraulics Laboratory. Permission was granted by the Chief of Engineers to publish this information.
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Information & Authors
Information
Published In
Journal of Environmental Engineering
Volume 138 • Issue 9 • September 2012
Pages: 979 - 984
Copyright
© 2012 American Society of Civil Engineers.
History
Received: Jul 15, 2011
Accepted: Feb 2, 2012
Published online: Feb 6, 2012
Published in print: Sep 1, 2012
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