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MIKE 21 – Spectral Wave Model FM MIKE 21 – 谱波浪模型

MIKE 21 – Spectral Wave Model FM MIKE 21 – 谱波浪模型. Training Course Applications - general. Ole Svenstrup Petersen Head of Innovations Coastal & Estuarine Engineering E-mail: osp@dhigroup.com. Global wave prediction. 0.5° spatial resolution requires app. 2.7 GB RAM 0 .5° 的空间分辨率要求 2.7GB 的内存

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MIKE 21 – Spectral Wave Model FM MIKE 21 – 谱波浪模型

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  1. MIKE 21 – Spectral Wave Model FM MIKE 21 – 谱波浪模型 Training Course Applications - general Ole Svenstrup Petersen Head of Innovations Coastal & Estuarine Engineering E-mail: osp@dhigroup.com

  2. Global wave prediction 0.5° spatial resolution requires app. 2.7 GB RAM 0.5°的空间分辨率要求2.7GB的内存 0.25° spatial resolution requires app. 6 GB RAM 0.25°的空间分辨率要求 6GB的内存

  3. Global wave prediction • January storm 2005 • in the North Atlantic • 2005年1月北大西洋的风暴

  4. Horns Rev Objective (waves) 目的（波浪） Establishment of 4 day wave forecast for planning of marine operations (maintenance etc.) 建立4天的波浪预报模型 (m) Offshore wind farm with 80 turbines (168 MW) 外海风电场80个风机

  5. Horns Rev Atlantic model大西洋模型 Number of elements: 8334 Maximum edge length: 1.0 degree Minimum edge length: 0.5 degree (m) North Sea-Baltic Sea model 北波罗的海模型 Number of elements: 8985 Maximum edge length: 40 km Minimum edge length: 1.5 km (m)

  6. Horns Rev Model Setup 模型设置 Number of frequencies 25 Minimum frequency 0.04 Hz Frequency factor 1.115 Number of directions 16 Time step 600 s Average time step factor (NSBS model) 5.2 Maximum time step factor (NSBS model) 32 Include water level variation 变化水位 Water level at Horns Rev水位

  7. Horns Rev Measurements stations 测站 Fjaltring Harald W Horns Rev S (m)

  8. Horns Rev Fjaltring Significant wave height, Hm0 Wave period, T02 Horns Rev S Wave period, T02 Significant wave height, Hm0

  9. Horns Rev Fjaltring - frequency spectrum Horns Rev S - frequency spectrum

  10. Horns Rev Horns Rev S - Directional-frequency spectrum

  11. Gellen Bay Objective 目的 Determine the nearshore wave condition along the island of Hiddensee and the coast of Zingst 确定Hiddensee岛和Zingst海岸的近岸波浪条件 Gellen bay (m)

  12. Gellen Bay • Regional Mesh Number of elements: 9420 Maximum edge length: 6.5 km Minimum edge length: 400 m • • • •

  13. Gellen Bay Local Mesh Number of elements: 43016 Maximum edge length: 350 m Minimum edge length: 20 m (m)

  14. Gellen Bay Regional model Instationary fully spectral formulation 非定常 全谱 Number of frequencies 25 Minimum frequency 0.055 Hz Frequency factor 1.1 Number of directions 18 Number of unknowns 4239000 Simulation Period 10 days Time step 150 s Average time step factor 4.4 Maximum time step factor 16 Include water level variation Local model Quasi-stationary directionally decoupled parametric formulation 准定常 方向解耦参数方程 Number of directions 18 Simulation Period 10 days Time step 2 hours Include water level variation

  15. Gellen Bay Offshore (20.5 m) Significant wave height, Hm0 Peak period, Tp Mean wave direction, MWD Directional standard deviation, DSD

  16. Gellen Bay Gellen (8.3 m) Significant wave height, Hm0 Peak period, Tp Mean wave direction, MWD Directional standard deviation, DSD

  17. Gellen Bay Bock (5.5 m) Error statistics (Hm0) Zingst (4.5 m) Neundorf (6.5 m)

  18. Gellen Bay (m) (m/s)

  19. Gellen Bay (m) (m/s)

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