Common simulation methods in wind condition survey use CFD models and meso-scale meteorological models to identify wide-scale wind data around the project sites.
We provide optimal solutions by selecting best models in consideration of various conditions for the project sites.
1. Meso-scale meteorological model
Meso-scale meteorological model (MSM) can solve meteorological phenomena on a meso-scale (ca. 2 to 2,000 km). Globally, MSM has been used in offshore wind project simulations due to its suitability for considering large thermal effects of offshore wind. Typical models include WRF and MM5.
We use WRF, which is corroborated by the latest research achievements of Kobe University and AIST, one of the Japan's leading research institutions.
<Our sales points>
- Conduct highly accurate WRF simulations with options such as output with higher resolution than NEDO’s offshore wind map NeoWins (500 m grid resolution) or input of latest sea surface temperature dataset jointly developed by Kobe University and AIST.
Conduct model correction by "data assimilation" based on wind observations to get more accurate output than that from meso-meteorological model only.
Sample image of meso-scale model WRF
Sample image of WRF simulation
2. CFD model
CFD (computational fluid dynamics) models are widely used in Japan because the models excel at air flow analysis around structures, being suitable for Japanese complex mountainous terrains.
CFD's main target is micro-scale (less than 2 km) space, and it use time series wind observation data as the input. Typical models include MASCOT and RIAM-COMPACT.
We conduct simulations by setting calculation conditions considering with the terrain characteristics around the project sites.
<Our sales points>
Conduct MASCOT simulations by referring to global/domestic standards (e.g. IEC, JIS) and guidelines (e.g. MEASNET - Evaluation of Site Specific Wind Conditions; Certification for Onshore Wind Farms) and meeting with wind farm certification requirements.
Sample image of MASCOT calculation area and altitude data
Sample image of MASCOT wind speed distribution