微細規模大気流れの気象モデルとCFDモデルの融合解析

Fine-scale analysis of atmospheric flow by merging meteorological and CFD models

竹見 哲也*; 中山 浩成   

Takemi, Tetsuya*; Nakayama, Hiromasa

本稿では、気象モデルの高解像度化による気象擾乱の微細構造に起因する風速変動の再現性,CFDモデルによる現実的な粗度形態のもとで発達する境界層乱流のLES(Large-Eddy Simulation)解析について、両モデルの融合による微細規模大気流れのシミュレーションにあたり、検討すべき課題と展望について述べる。

We explain one theme "Meteorological model of a local scale atmospheric flow and uniting analysis of the CFD model" of feature project "Development and application of the next generation weather model who centers on WRF" of academic society magazine "Flow" by the request of the Japanese fluid mechanics association. In this text, the problem and the view that should be examined when a local scale atmospheric flow by the both models' uniting is simulated about LES analysis of the turbulent boundary layer flow that develops under a realistic rough degree form by reproducibility and CFD model of the wind speed fluctuation that originates in the microindentation of the weather disturbance by making of the meteorological model a high resolution are described.