Latest developments in numerical wind synopsis prediction using the RIAM-COMPACT® CFD model-design wind speed evaluation and wind risk (terrain-induced turbulence) diagnostics in Japan

Takanori Uchida, Yuji Ohya

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Because a significant portion of the topography in Japan is characterized by steep, complex terrain, which results in a complex spatial distribution of wind speed, great care is necessary for selecting a site for the construction of Wind Turbine Generators (WTGs). We have developed a CFD model for unsteady flow called Research Institute for Applied Mechanics, Kyushu University, COMputational Prediction of Airflow over Complex Terrain (RIAM-COMPACT®). The RIAM-COMPACT® CFD model is based on Large-Eddy Simulation (LES) technique. The computational domain of RIAM-COMPACT® can extend from several meters to several kilometers, and RIAM-COMPACT® can predict airflow and gas diffusion over complex terrains with high accuracy. First, the present paper proposes a technique for evaluating the deployment location of WTGs. Next, wind simulation of an actual wind farm was executed using the high resolution elevation data. As a result, an appropriate point and an inappropriate point for locating WTGs were shown based on the numerical results obtained. This cause was found to be a topographical irregularity in front of WTGs.

Original languageEnglish
Pages (from-to)458-474
Number of pages17
JournalEnergies
Volume4
Issue number3
DOIs
Publication statusPublished - Mar 2011

Fingerprint

Wind Speed
Turbogenerators
Japan
Wind turbines
Mechanics
Turbulence
Diagnostics
Computational fluid dynamics
Wind Turbine
Prediction
Evaluation
Generator
Diffusion in gases
Large eddy simulation
Unsteady flow
Model
Farms
Topography
Spatial distribution
Large Eddy Simulation

All Science Journal Classification (ASJC) codes

  • Computer Science(all)
  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Energy (miscellaneous)

Cite this

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abstract = "Because a significant portion of the topography in Japan is characterized by steep, complex terrain, which results in a complex spatial distribution of wind speed, great care is necessary for selecting a site for the construction of Wind Turbine Generators (WTGs). We have developed a CFD model for unsteady flow called Research Institute for Applied Mechanics, Kyushu University, COMputational Prediction of Airflow over Complex Terrain (RIAM-COMPACT{\circledR}). The RIAM-COMPACT{\circledR} CFD model is based on Large-Eddy Simulation (LES) technique. The computational domain of RIAM-COMPACT{\circledR} can extend from several meters to several kilometers, and RIAM-COMPACT{\circledR} can predict airflow and gas diffusion over complex terrains with high accuracy. First, the present paper proposes a technique for evaluating the deployment location of WTGs. Next, wind simulation of an actual wind farm was executed using the high resolution elevation data. As a result, an appropriate point and an inappropriate point for locating WTGs were shown based on the numerical results obtained. This cause was found to be a topographical irregularity in front of WTGs.",
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