초록

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Abstract ▼ AI-Helper

A combined procedure using Monte Carlos simulation technique, the type-I (or Gumbel) extreme value analysis, and CFD(computational fluid dynamics) model is presented here to estimate the probable local wind speed of a given return period at specific locations surrounded by terrain features. The his...

A combined procedure using Monte Carlos simulation technique, the type-I (or Gumbel) extreme value analysis, and CFD(computational fluid dynamics) model is presented here to estimate the probable local wind speed of a given return period at specific locations surrounded by terrain features. The historical records of storms show two distinct seasons, a typhoon season from June to October, and a non-typhoon season from November to May. We evaluated the risk levels that recognize different wind characteristics for these two seasons. The Monte Carlos method is used for the typhoon season and the type-I analysis, for the non-typhoon season. The nearby terrain effects upon the local winds are estimated by a state-of-the-technology CFD model. The complicated 3D terrain features are incorporated into the model solutions through the virtual boundary method. Large Eddy Simulation is adopted for the sub-grid turbulences.