急峻な岬まわりの気流場シミュレーション:―気象力学モデルCSU-RAMSと流体力学モデルRIAM-COMPACTの適用性について―

概要

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In the present study, the numerical simulation of airflow around a steep cape was performed by using the mesoscale model CSU-RAMS (Colorado State University, Regional Atmospheric Modeling System) and the CFD (Computational Fluid Dynamics) model RIAM-COMPACT (Research Institute for Applied Mechanics, Kyushu University, Computational Prediction of Airflow over Complex Terrain). The wind speed obtained by the CSU-RAMS was in a good agreement with the observed data. On the other hand, the numerical results obtained by the RIAM-COMPACT demonstrated that the changes induced on the wind field by the topographic effect, such as the flow impingement, separation and reattachment, are successfully simulated. If the CSU-RAMS and the RIAM-COMPACT can be merged effectively, it can be said that a highly precise numerical simulation will become possible.
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