Chapter
Apr 26, 2012
Simulations of Aquaculture Dissolved Waste Transport and Mixing in Near-Coastal Waters
Authors: S. K. Venayagamoorthy [email protected], O. B. Fringer [email protected] and Woods Institute for the Environment, Stanford University, Stanford, CA 94305, USA., J. R. Koseff [email protected] and Woods Institute for the Environment, Stanford University, Stanford, CA 94305, USA., and R. L. Naylor [email protected]Author Affiliations
Publication: World Environmental and Water Resources Congress 2009: Great Rivers
Abstract
The present study focuses on understanding the transport and fate of dissolved waste from aquaculture pens in near-coastal environments using the hydrodynamic code SUNTANS, which employs unstructured grids to compute flows at very high resolution. We perform simulations of the dissolved waste field and study the effects of different flow conditions (tides and currents) on the evolution of the waste plume. The fish pen causes partial blockage of the flow, leading to the deceleration of the approaching flow and the formation of a downstream wake. Results of the concentration field for an oscillatory flow condition superimposed on a mean current are presented and compared with the concentration resulting from a unidirectional flow field. The simulation results highlight the complex (and different) circulation patterns that occur around a submerged fish pen under oscillatory flow conditions and provide an understanding of the impact of aquaculture fish pens on coastal water quality.
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Published In
World Environmental and Water Resources Congress 2009: Great Rivers
Pages: 1 - 8
Copyright
© 2009 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
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ASCE Technical Topics:
- Agriculture
- Ecosystems
- Engineering fundamentals
- Engineering materials (by type)
- Environmental engineering
- Field tests
- Fish and fishery management
- Flow simulation
- Fluid dynamics
- Fluid mechanics
- Hydration
- Hydrodynamics
- Hydrologic engineering
- Irrigation engineering
- Laminating
- Materials engineering
- Materials processing
- Models (by type)
- Recycling
- Tests (by type)
- Waste management
- Water and water resources
Authors
Affiliations
A.M.ASCE
Department of Civil and Environmental Engineering, Campus Delivery 1372, Colorado State University, Fort Collins, CO 80523-1372, USA. E-mail: [email protected]
O. B. Fringer [email protected] and Woods Institute for the Environment, Stanford University, Stanford, CA 94305, USA.
Environmental Fluid Mechanics Laboratory, Department of Civil and Environmental Engineering, Stanford University, Stanford, California 94305-4020. E-mail: [email protected] and Woods Institute for the Environment, Stanford University, Stanford, CA 94305, USA.
J. R. Koseff [email protected] and Woods Institute for the Environment, Stanford University, Stanford, CA 94305, USA.
Environmental Fluid Mechanics Laboratory, Department of Civil and Environmental Engineering, Stanford University, Stanford, California 94305-4020. E-mail: [email protected] and Woods Institute for the Environment, Stanford University, Stanford, CA 94305, USA.
Environmental Fluid Mechanics Laboratory, Department of Civil and Environmental Engineering, Stanford University, Stanford, California 94305-4020 and Food Security and Environment Program, Stanford University, Stanford, California 94305-4205.E-mail: [email protected]
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