Modeling of the near-field distribution of pollutants coming from a coastal outfall
The present study concerns the 3-D distribution of pollutants emitted from a coastal outfall in the presence of strong sea currents. The problem is solved using the nonlinear Reynolds-averaged Navier–Stokes equations in the framework of the <i>k</I>-<i>ε</i> model. The consta...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2013-04-01
|
| Series: | Nonlinear Processes in Geophysics |
| Online Access: | http://www.nonlin-processes-geophys.net/20/257/2013/npg-20-257-2013.pdf |
| _version_ | 1811254227969769472 |
|---|---|
| author | T. P. Lyubimova B. Roux S. Luo Y. N. Parshakova N. S. Shumilova |
| author_facet | T. P. Lyubimova B. Roux S. Luo Y. N. Parshakova N. S. Shumilova |
| author_sort | T. P. Lyubimova |
| collection | DOAJ |
| description | The present study concerns the 3-D distribution of pollutants emitted from a coastal outfall in the presence of strong sea currents. The problem is solved using the nonlinear Reynolds-averaged Navier–Stokes equations in the framework of the <i>k</I>-<i>ε</i> model. The constants of the logarithmic law for the vertical velocity profile in the bottom boundary layer are obtained by processing experimental data from acoustic Doppler current profilers (ADCPs). The near-field distribution of pollutants at different distances from the diffuser is obtained in terms of the ambient flow velocity (steady or with tidal effect) and outfall discharge characteristics. It is shown that even in the case where the effluent density is substantially lower than the ambient sea water density the plume can impact the seabed, creating a risk of pollution of removable bottom sediments. |
| first_indexed | 2024-04-12T17:03:19Z |
| format | Article |
| id | doaj.art-4381d15eea424abb94ab17211a522616 |
| institution | Directory Open Access Journal |
| issn | 1023-5809 1607-7946 |
| language | English |
| last_indexed | 2024-04-12T17:03:19Z |
| publishDate | 2013-04-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Nonlinear Processes in Geophysics |
| spelling | doaj.art-4381d15eea424abb94ab17211a5226162022-12-22T03:24:00ZengCopernicus PublicationsNonlinear Processes in Geophysics1023-58091607-79462013-04-0120225726610.5194/npg-20-257-2013Modeling of the near-field distribution of pollutants coming from a coastal outfallT. P. LyubimovaB. RouxS. LuoY. N. ParshakovaN. S. ShumilovaThe present study concerns the 3-D distribution of pollutants emitted from a coastal outfall in the presence of strong sea currents. The problem is solved using the nonlinear Reynolds-averaged Navier–Stokes equations in the framework of the <i>k</I>-<i>ε</i> model. The constants of the logarithmic law for the vertical velocity profile in the bottom boundary layer are obtained by processing experimental data from acoustic Doppler current profilers (ADCPs). The near-field distribution of pollutants at different distances from the diffuser is obtained in terms of the ambient flow velocity (steady or with tidal effect) and outfall discharge characteristics. It is shown that even in the case where the effluent density is substantially lower than the ambient sea water density the plume can impact the seabed, creating a risk of pollution of removable bottom sediments.http://www.nonlin-processes-geophys.net/20/257/2013/npg-20-257-2013.pdf |
| spellingShingle | T. P. Lyubimova B. Roux S. Luo Y. N. Parshakova N. S. Shumilova Modeling of the near-field distribution of pollutants coming from a coastal outfall Nonlinear Processes in Geophysics |
| title | Modeling of the near-field distribution of pollutants coming from a coastal outfall |
| title_full | Modeling of the near-field distribution of pollutants coming from a coastal outfall |
| title_fullStr | Modeling of the near-field distribution of pollutants coming from a coastal outfall |
| title_full_unstemmed | Modeling of the near-field distribution of pollutants coming from a coastal outfall |
| title_short | Modeling of the near-field distribution of pollutants coming from a coastal outfall |
| title_sort | modeling of the near field distribution of pollutants coming from a coastal outfall |
| url | http://www.nonlin-processes-geophys.net/20/257/2013/npg-20-257-2013.pdf |
| work_keys_str_mv | AT tplyubimova modelingofthenearfielddistributionofpollutantscomingfromacoastaloutfall AT broux modelingofthenearfielddistributionofpollutantscomingfromacoastaloutfall AT sluo modelingofthenearfielddistributionofpollutantscomingfromacoastaloutfall AT ynparshakova modelingofthenearfielddistributionofpollutantscomingfromacoastaloutfall AT nsshumilova modelingofthenearfielddistributionofpollutantscomingfromacoastaloutfall |