Civil Engineering Reference
In-Depth Information
Simulations in TOS-02
As mentioned, simulations were done for two case studies. Simulations of case
study I with constant wind direction are designated with T8590ug08wd*, while *
stands for the wind direction in degree of 000 , 045 , 090 , 135 , 180 , 225 ,270 ,
and 315 .
The more realistic simulations of case study II are designated with T8590S01.
Simulations of TOS-02 are listed in Table 3.3 .
Table 3.1 Ocean simulation and analysis concepts at a glance
Main
simulation
TOS-01: ocean box simulations TOS-02: North Sea simulations
Description
Used for theoretical analysis
Idealized ocean box
Used for analysis of German Bight
Real North Sea area
Resolution
3 km 3km 2m
3km 3km z , with z -indices of
05 m (000-050 m)
10 m (050-100 m)
20 m (100-200 m)
50 m (200-700 m)
Topography
Flat bottom with depths of 30
and 60 m
no uplift due to bathymetry
North Sea
s common topography (Fig. 3.6 )
'
Time step (dt)
1 min
1 min
Wind time step
10 min
10 min, hourly
Output
10-min mean average
10-min mean average
Wind farm
One wind farm with different
numbers of turbines
(#12,48,80,160)
A couple of wind farms in the North Sea;
total number of wind turbines is 8,590
Wind forcing
8 m/s normal test run
5 &16 m/s to analyze the effect
of different wind speeds
8 m/s for run with constant wind direction;
rest is variable and depends on meteoro-
logical forcing
Meteorological
forcing
Forcing variables (METRAS):
• 2 m/10 m of temperature
• 2 m/10 m of humidity
• Precipitation
• Cloudiness
• Wind stress
• Wind speed
• Surface pressure
- Mostly only wind (wind
stress) and pressure forcing
- One simulation with full
meteorological forcing
included
Forcing variables (METRAS & ECMWF) :
• 2 m/10 m of temperature
• 2 m/10 m of humidity
• Precipitation
• Cloudiness
• Wind stress
• Wind speed
• Surface pressure
- Full meteorological forcing
- Wind and pressure forcing only
Boundaries
Open boundaries
Open boundaries
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