The Application of Computational Fluid Dynamic Models for Research of Wastewater Marine Outfalls in Ice Cover Periods

• Published in: IOP Conference Series: Earth and Environmental Science
• Main Authors: Bezborodov, S, Zemlyanaya, N
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: IOP Publishing 2020
• Subjects: Arctic
• Online Access: http://dx.doi.org/10.1088/1755-1315/459/5/052087; https://iopscience.iop.org/article/10.1088/1755-1315/459/5/052087/pdf; https://iopscience.iop.org/article/10.1088/1755-1315/459/5/052087

Abstract The research of pollutant transfer process in ice-covered marine water areas has a great practical interest. The understanding of pollution transfer and transformation processes in freeze-up period is necessary in conditions of active development of the Arctic Coast and in design a long-term prediction of water quality. The detailed research of wastewater transfer in ice-covered marine water areas in Russia factually not been produced despite the fact, that in practice all type of coastal outfalls realized in the Far Eastern seas, which freeze-up period during from 4 to 6 months. The submitted research shows the results of field studies of wastewater outfalls of Vladivostok city. The field studies results was compared with results of wastewater transfer calculations, making by engineering methods and results of simulation, produced by CFD (Computational Fluid Dynamic) models which implemented in the Ansys Fluent application software package. As a result of a comparison of the field study data and calculation results, was found that the official recomendations for calculating wastewater dilution give a significant error in calculating wastewater dilution in case of discharged into ice-covered marine water areas. A positive result was obtained for application of CFD models for research of marine outfalls in periods of water freezing.