Diffusion Characteristics and Mechanisms of Thermal Plumes from Coastal Power Plants: A Numerical Simulation Study
Plumes include thermal plumes and cold plumes, of which thermal plumes receive more attention. Thermal plumes refer to the formation of high-temperature fluid structures near a heat source, which diffuse and propagate within the surrounding environment. In this study, we simulate the formation and e...
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| Format: | Article |
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MDPI AG
2024-02-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/12/3/429 |
| _version_ | 1797240439937433600 |
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| author | Gaoqiang Kong Weibing Guan |
| author_facet | Gaoqiang Kong Weibing Guan |
| author_sort | Gaoqiang Kong |
| collection | DOAJ |
| description | Plumes include thermal plumes and cold plumes, of which thermal plumes receive more attention. Thermal plumes refer to the formation of high-temperature fluid structures near a heat source, which diffuse and propagate within the surrounding environment. In this study, we simulate the formation and evolution of thermal plumes using numerical modeling. Taking Wushashan Power Plant in Xiangshan Bay as an example, the diffusion characteristics of the thermal plume near the power plant were simulated by the optimized FVCOM. Combined with statistical methods and advanced mathematical models, the plume diffusion range under different working conditions was quantified, and the diffusion mechanism was studied. For example, we found that when the flow velocity is halved, the diffusion area of the surface thermal plume decreases by more than half. When the flow rate in Xiangshan Bay is reduced to 5 m<sup>3</sup>/s, the area of surface temperature rise plumes is small. Using the Richardson number, the characteristics and mechanisms of stratification/mixing near the power plant were explored. It was found that the flow field near the power plant was mainly affected by the momentum of the outlet. During a typhoon, the wind strength and path impact thermal plume diffusion via wind-driven flow. |
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| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-04-24T18:07:27Z |
| publishDate | 2024-02-01 |
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| spelling | doaj.art-d6bed3a820cf4850b5b477a5efc32d012024-03-27T13:49:15ZengMDPI AGJournal of Marine Science and Engineering2077-13122024-02-0112342910.3390/jmse12030429Diffusion Characteristics and Mechanisms of Thermal Plumes from Coastal Power Plants: A Numerical Simulation StudyGaoqiang Kong0Weibing Guan1School of Ocean Engineering, Jiangsu Ocean University, Lianyungang 222005, ChinaSecond Institute of Oceanography, MNR, Hangzhou 310005, ChinaPlumes include thermal plumes and cold plumes, of which thermal plumes receive more attention. Thermal plumes refer to the formation of high-temperature fluid structures near a heat source, which diffuse and propagate within the surrounding environment. In this study, we simulate the formation and evolution of thermal plumes using numerical modeling. Taking Wushashan Power Plant in Xiangshan Bay as an example, the diffusion characteristics of the thermal plume near the power plant were simulated by the optimized FVCOM. Combined with statistical methods and advanced mathematical models, the plume diffusion range under different working conditions was quantified, and the diffusion mechanism was studied. For example, we found that when the flow velocity is halved, the diffusion area of the surface thermal plume decreases by more than half. When the flow rate in Xiangshan Bay is reduced to 5 m<sup>3</sup>/s, the area of surface temperature rise plumes is small. Using the Richardson number, the characteristics and mechanisms of stratification/mixing near the power plant were explored. It was found that the flow field near the power plant was mainly affected by the momentum of the outlet. During a typhoon, the wind strength and path impact thermal plume diffusion via wind-driven flow.https://www.mdpi.com/2077-1312/12/3/429thermal dischargethermal plumesnumerical modelXiangshan Bay |
| spellingShingle | Gaoqiang Kong Weibing Guan Diffusion Characteristics and Mechanisms of Thermal Plumes from Coastal Power Plants: A Numerical Simulation Study Journal of Marine Science and Engineering thermal discharge thermal plumes numerical model Xiangshan Bay |
| title | Diffusion Characteristics and Mechanisms of Thermal Plumes from Coastal Power Plants: A Numerical Simulation Study |
| title_full | Diffusion Characteristics and Mechanisms of Thermal Plumes from Coastal Power Plants: A Numerical Simulation Study |
| title_fullStr | Diffusion Characteristics and Mechanisms of Thermal Plumes from Coastal Power Plants: A Numerical Simulation Study |
| title_full_unstemmed | Diffusion Characteristics and Mechanisms of Thermal Plumes from Coastal Power Plants: A Numerical Simulation Study |
| title_short | Diffusion Characteristics and Mechanisms of Thermal Plumes from Coastal Power Plants: A Numerical Simulation Study |
| title_sort | diffusion characteristics and mechanisms of thermal plumes from coastal power plants a numerical simulation study |
| topic | thermal discharge thermal plumes numerical model Xiangshan Bay |
| url | https://www.mdpi.com/2077-1312/12/3/429 |
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