MODELLING OF SEDIMENTS CONCENTRATION DISTRIBUTION IN DREDGED CANALS OF THE NIGER DELTA ESTUARINE REGION, NIGERIA
Previous sediments concentration distributi on models used in the study of sediment characteristics of the dredged canals in the Niger-Delta estuarine region, Nigeria; did not take into consideration the lateral in flow due to tidal effects, which affects tremendously, the sediment intake into the e...
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| Format: | Article |
| Language: | English |
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University of Paraiba
2013-01-01
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| Series: | Journal of Urban and Environmental Engineering |
| Online Access: | http://www.redalyc.org/articulo.oa?id=283230157016 |
| _version_ | 1819053730417344512 |
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| author | Charles Chizom Dike J. C. Agunwamba |
| author_facet | Charles Chizom Dike J. C. Agunwamba |
| author_sort | Charles Chizom Dike |
| collection | DOAJ |
| description | Previous sediments concentration distributi on models used in the study of sediment characteristics of the dredged canals in the Niger-Delta estuarine region, Nigeria; did not take into consideration the lateral in flow due to tidal effects, which affects tremendously, the sediment intake into the estuarine waters. In the current research, existing models are modified by incorpora ting the missing lateral inflow parameters, which are peculiar to the Niger Delta environment, to obtain more accurate model results. Details are given herein, of the deve lopment and application of a 3-dimensional numerical model (EKU 2.8 Models) to predict sediment concentration distribution (total suspended sediment & bed sediment load s) in the Niger Delta estuarine canals, with Ekulama well 19 access canal as a case study. The approach in this paper involved coupling a sediment transport equation (w ith the inclusion of lateral inflow parameters), with an estuarine hydro-dy namics equation to generate a generic 3- dimensional sediment concentration distribu tion model, using deterministic approach. Predicted results using this model compar ed favorably with measured field results. Average sediment concentration of 29mg/l was obtained compared with 31mg/l measured in the field for bed sediment loads. Finally, the predicted sediment concentration distribution (TSS), when comp ared with field results, gave average correlation coefficient of 0.9.; hence, the present model will assist in generating adequate information /data on sediment ch aracteristics and transport mechanism, required for effective design of canals to redu ce rate of siltation. The application of the above knowledge/parameters generated from this model to effectively design canals to reduce siltation will be treated in subsequent articles. |
| first_indexed | 2024-12-21T12:40:22Z |
| format | Article |
| id | doaj.art-1a9d60d12f894c59a241911dd07bf8dc |
| institution | Directory Open Access Journal |
| issn | 1982-3932 |
| language | English |
| last_indexed | 2024-12-21T12:40:22Z |
| publishDate | 2013-01-01 |
| publisher | University of Paraiba |
| record_format | Article |
| series | Journal of Urban and Environmental Engineering |
| spelling | doaj.art-1a9d60d12f894c59a241911dd07bf8dc2022-12-21T19:03:48ZengUniversity of ParaibaJournal of Urban and Environmental Engineering1982-39322013-01-0172330339MODELLING OF SEDIMENTS CONCENTRATION DISTRIBUTION IN DREDGED CANALS OF THE NIGER DELTA ESTUARINE REGION, NIGERIACharles Chizom DikeJ. C. AgunwambaPrevious sediments concentration distributi on models used in the study of sediment characteristics of the dredged canals in the Niger-Delta estuarine region, Nigeria; did not take into consideration the lateral in flow due to tidal effects, which affects tremendously, the sediment intake into the estuarine waters. In the current research, existing models are modified by incorpora ting the missing lateral inflow parameters, which are peculiar to the Niger Delta environment, to obtain more accurate model results. Details are given herein, of the deve lopment and application of a 3-dimensional numerical model (EKU 2.8 Models) to predict sediment concentration distribution (total suspended sediment & bed sediment load s) in the Niger Delta estuarine canals, with Ekulama well 19 access canal as a case study. The approach in this paper involved coupling a sediment transport equation (w ith the inclusion of lateral inflow parameters), with an estuarine hydro-dy namics equation to generate a generic 3- dimensional sediment concentration distribu tion model, using deterministic approach. Predicted results using this model compar ed favorably with measured field results. Average sediment concentration of 29mg/l was obtained compared with 31mg/l measured in the field for bed sediment loads. Finally, the predicted sediment concentration distribution (TSS), when comp ared with field results, gave average correlation coefficient of 0.9.; hence, the present model will assist in generating adequate information /data on sediment ch aracteristics and transport mechanism, required for effective design of canals to redu ce rate of siltation. The application of the above knowledge/parameters generated from this model to effectively design canals to reduce siltation will be treated in subsequent articles.http://www.redalyc.org/articulo.oa?id=283230157016 |
| spellingShingle | Charles Chizom Dike J. C. Agunwamba MODELLING OF SEDIMENTS CONCENTRATION DISTRIBUTION IN DREDGED CANALS OF THE NIGER DELTA ESTUARINE REGION, NIGERIA Journal of Urban and Environmental Engineering |
| title | MODELLING OF SEDIMENTS CONCENTRATION DISTRIBUTION IN DREDGED CANALS OF THE NIGER DELTA ESTUARINE REGION, NIGERIA |
| title_full | MODELLING OF SEDIMENTS CONCENTRATION DISTRIBUTION IN DREDGED CANALS OF THE NIGER DELTA ESTUARINE REGION, NIGERIA |
| title_fullStr | MODELLING OF SEDIMENTS CONCENTRATION DISTRIBUTION IN DREDGED CANALS OF THE NIGER DELTA ESTUARINE REGION, NIGERIA |
| title_full_unstemmed | MODELLING OF SEDIMENTS CONCENTRATION DISTRIBUTION IN DREDGED CANALS OF THE NIGER DELTA ESTUARINE REGION, NIGERIA |
| title_short | MODELLING OF SEDIMENTS CONCENTRATION DISTRIBUTION IN DREDGED CANALS OF THE NIGER DELTA ESTUARINE REGION, NIGERIA |
| title_sort | modelling of sediments concentration distribution in dredged canals of the niger delta estuarine region nigeria |
| url | http://www.redalyc.org/articulo.oa?id=283230157016 |
| work_keys_str_mv | AT charleschizomdike modellingofsedimentsconcentrationdistributionindredgedcanalsofthenigerdeltaestuarineregionnigeria AT jcagunwamba modellingofsedimentsconcentrationdistributionindredgedcanalsofthenigerdeltaestuarineregionnigeria |