Validation of Integral and Turbulence Models for Saline Wastewater Discharged into the Sea Environment
With the reduction of natural sources of fresh water, the activity of desalination factories is increasing. The effluent of these factories is returned to the sea environment. The effluent contains a lot of chemicals and salt, which in case of improper discharge will disturb the balance of the sea e...
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| Format: | Article |
| Language: | fas |
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Ferdowsi University of Mashhad
2023-05-01
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| Series: | آب و توسعه پایدار |
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| Online Access: | https://jwsd.um.ac.ir/article_44004_203502169c0feacb68ebee627ce9b9e8.pdf |
| _version_ | 1797745583700574208 |
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| author | V. Babaiynejad B. Khorsandi |
| author_facet | V. Babaiynejad B. Khorsandi |
| author_sort | V. Babaiynejad |
| collection | DOAJ |
| description | With the reduction of natural sources of fresh water, the activity of desalination factories is increasing. The effluent of these factories is returned to the sea environment. The effluent contains a lot of chemicals and salt, which in case of improper discharge will disturb the balance of the sea environment. Using numerical models to check different discharge methods is one of the cheapest methods. In this research, the results of CORJET, VISJET and RNG (k-ε) models are validated for the discharge of concentrated wastewater. For this purpose, the simulation results of these models in static and dynamic environments are compared with the results of various laboratory studies. According to the results, the RNG model estimates the axial velocity of the jet well and with a small error compared to the integral and laboratory models. All three models estimate most of the parameters related to the discharge of concentrated wastewater in comparison with the laboratory studies. CORJET and VISJET models estimate the amount of effluent dilution with a high error, but the RNG model estimates the amount of effluent dilution with an acceptable error due to the consideration of flow turbulence. The most important advantage of CORJET and VISJET integral models is easy modeling and very low calculation time compared to RNG turbulence model. According to the presented results, it can be concluded that the RNG model is suitable for carrying out studies related to the discharge of concentrated wastewater from desalination plants due to considering the flow turbulence and providing accurate results. |
| first_indexed | 2024-03-12T15:25:23Z |
| format | Article |
| id | doaj.art-1547844659d5400ba495e32348bc107d |
| institution | Directory Open Access Journal |
| issn | 2423-5474 2717-3321 |
| language | fas |
| last_indexed | 2024-03-12T15:25:23Z |
| publishDate | 2023-05-01 |
| publisher | Ferdowsi University of Mashhad |
| record_format | Article |
| series | آب و توسعه پایدار |
| spelling | doaj.art-1547844659d5400ba495e32348bc107d2023-08-10T13:24:19ZfasFerdowsi University of Mashhadآب و توسعه پایدار2423-54742717-33212023-05-01101576610.22067/jwsd.v10i1.2210-118644004Validation of Integral and Turbulence Models for Saline Wastewater Discharged into the Sea EnvironmentV. Babaiynejad0B. Khorsandi1MSc of Civil Engineering , Department of Civil and Environmental Engineering, Amirkabir University of Technology (Tehran Polytechnic), IranAssociate Professor, Department of Civil and Environmental Engineering, Amirkabir University of Technology (Tehran Polytechnic), IranWith the reduction of natural sources of fresh water, the activity of desalination factories is increasing. The effluent of these factories is returned to the sea environment. The effluent contains a lot of chemicals and salt, which in case of improper discharge will disturb the balance of the sea environment. Using numerical models to check different discharge methods is one of the cheapest methods. In this research, the results of CORJET, VISJET and RNG (k-ε) models are validated for the discharge of concentrated wastewater. For this purpose, the simulation results of these models in static and dynamic environments are compared with the results of various laboratory studies. According to the results, the RNG model estimates the axial velocity of the jet well and with a small error compared to the integral and laboratory models. All three models estimate most of the parameters related to the discharge of concentrated wastewater in comparison with the laboratory studies. CORJET and VISJET models estimate the amount of effluent dilution with a high error, but the RNG model estimates the amount of effluent dilution with an acceptable error due to the consideration of flow turbulence. The most important advantage of CORJET and VISJET integral models is easy modeling and very low calculation time compared to RNG turbulence model. According to the presented results, it can be concluded that the RNG model is suitable for carrying out studies related to the discharge of concentrated wastewater from desalination plants due to considering the flow turbulence and providing accurate results.https://jwsd.um.ac.ir/article_44004_203502169c0feacb68ebee627ce9b9e8.pdfdesalinationjeteffluentplumedilution |
| spellingShingle | V. Babaiynejad B. Khorsandi Validation of Integral and Turbulence Models for Saline Wastewater Discharged into the Sea Environment آب و توسعه پایدار desalination jet effluent plume dilution |
| title | Validation of Integral and Turbulence Models for Saline Wastewater Discharged into the Sea Environment |
| title_full | Validation of Integral and Turbulence Models for Saline Wastewater Discharged into the Sea Environment |
| title_fullStr | Validation of Integral and Turbulence Models for Saline Wastewater Discharged into the Sea Environment |
| title_full_unstemmed | Validation of Integral and Turbulence Models for Saline Wastewater Discharged into the Sea Environment |
| title_short | Validation of Integral and Turbulence Models for Saline Wastewater Discharged into the Sea Environment |
| title_sort | validation of integral and turbulence models for saline wastewater discharged into the sea environment |
| topic | desalination jet effluent plume dilution |
| url | https://jwsd.um.ac.ir/article_44004_203502169c0feacb68ebee627ce9b9e8.pdf |
| work_keys_str_mv | AT vbabaiynejad validationofintegralandturbulencemodelsforsalinewastewaterdischargedintotheseaenvironment AT bkhorsandi validationofintegralandturbulencemodelsforsalinewastewaterdischargedintotheseaenvironment |