New Unstructured Mesh Water Quality Model for Cooling Water Biocide Discharges |
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Authors: | Johannes Lawen Huaming Yu Georg Fieg Ahmed Abdel-Wahab Tejas Bhatelia |
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Institution: | 1. Texas A&M University at Qatar, Texas A&M Engineering Building, Education City, 23874, Doha, Qatar 2. Hamburg University of Technology, Schwarzenbergstr. 95, 21073, Hamburg, Germany
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Abstract: | A new unstructured mesh coastal water and air quality model has been developed that includes species transport, nonlinear decay, by-product formation, and mass-exchange between sea and atmosphere. The model has been programmed with a graphical user interface and is applicable to coastal seawater, lakes, and rivers. Focused on species conversion and interaction with the atmosphere, the water and air quality model follows a modular approach. It is a compatible module which simulates distributions based on fluid dynamic field data of underlying existing hydrodynamic and atmospheric simulations. Nonlinear and spline approximations of decay and growth kinetics, by-product formation, and joint sea–atmosphere simulation have been embedded. The Windows application software includes functions allowing error analysis concerning mesh and finite volume approximation. In this work, a submerged residual chlorine cooling water discharge and halogenated matter by-product formation has been simulated. An error analysis has been carried out by varying vertical meshing, time-steps and comparing results based on explicit and implicit finite volume approximation. The new model has been named 3D Simulation for Marine and Atmospheric Reactive Transport, in short 3D SMART. |
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