Numerical study on three-dimensional tidal current characteristics of Zhoushan Green Petrochemical Company

Lu Fan; Shen Liangduo; Gao Yu; Wang Jinbao

doi:10.12284/hyxb2022079

Volume 44 Issue 5

Jun. 2022

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Lu Fan，Shen Liangduo，Gao Yu, et al. Numerical study on three-dimensional tidal current characteristics of Zhoushan Green Petrochemical Company[J]. Haiyang Xuebao，2022, 44(5)：134–147 doi: 10.12284/hyxb2022079

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Numerical study on three-dimensional tidal current characteristics of Zhoushan Green Petrochemical Company

doi: 10.12284/hyxb2022079

Lu Fan^1
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Shen Liangduo^{1
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Gao Yu¹,
Wang Jinbao¹

School of Naval Architecture and Martime, Zhejiang Ocean University, Zhoushan 316021, China

Received Date: 2021-08-15
Rev Recd Date: 2021-12-17

Available Online: 2022-06-15

Publish Date: 2022-06-15

Abstract

Abstract

In this paper, MIKE3 is used to establish a three-dimensional hydrodynamic model of Zhoushan and Ningbo. Based on the tidal current verification with the measured data, the difference between the three-dimensional model and the two-dimensional model is compared. Also, the influence of the change of the tidal current field around the Zhoushan Green Petrochemical Phase III reclamation project before and after the implementation is mainly predicted and analyzed. The results show that: (1) Under the same initial conditions, the tidal level and tidal current validation results of two-dimensional model and three-dimensional model are good, and the two-dimensional results are closer to the measured values in some cases. (2) The three-dimensional vertical velocity distribution shows a decreasing trend with the increase of water depth. In general, the tidal current fitting is good, and the relative error of velocity below 0.6H water depth is between 10% and 15%. Considering that the model may not consider the influence of wind field and wave, the calculated surface velocity of local stations is slightly larger than the measured value; the vertical distribution of flow direction is nearly consistent. (3) Before and after the reclamation project, there was no obvious influence on the tidal current field around the project. Only in the northeast, southeast and northwest corner of Dayushan Island, affected by the “bend improvement” and the channel closure between small islands, there is a change in the local tidal current form. On the whole, the layout of reclamation projects conforming to the shoreline will have an effect on the local coastal tidal current, and almost no effect on the large scale tidal current field in the far sea.
- reclamation,
- tidal current,
- numerical simulation,
- MIKE3,
- MIKE21

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References(16)

References

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