GPU Accelerated Lattice Boltzmann Simulation of a Cyanide-Release Accident in the Danjiangkou Reservoir |
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| Authors: | Hongda Wang John Cater Haifei Liu |
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| Institution: | 1.School of Environment,Beijing Normal University,Beijing,China;2.Department of Engineering Science,The University of Auckland,Auckland,New Zealand;3.The Key Laboratory of Water and Sediment Sciences of Ministry of Education,Beijing Normal University,Beijing,China |
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| Abstract: | A graphics processing unit (GPU) accelerated two-dimensional contamination transport model is developed using the lattice Boltzmann method (LBM). The intrinsic parallel features of LBM make it particularly suitable for implementation on GPUs. After validation with two benchmarks, the model was applied to a cyanide-release accident in the Danjiangkou Reservoir, using a numerical combination of hydrodynamics and solute transport. The results show good agreement with an Environmental Fluid Dynamics Code (EFDC) model. A single GPU workstation speedup reaches 1.58 times that of a central processing unit (CPU) calculation alone. This speedup provides the opportunity for applying the model as a pollution accident information and decision support system for the Middle Route of the South to North Water Diversion Project in China. |
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