AM06-02-004 統計的方法と非定常流体解析による方法を組み合わせた流入変動風の生成(風工学(1),一般講演)

概要

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A new numerical method for generation of inflow turbulence called "mixing model of freestream turbulence and boundary-layer" is proposed for an inflow boundary condition in unsteady numerical simulation. The model is based on a combination of a stochastic method for generation of freestream turbulence and an unsteady flow simulation method for generation of turbulent boundary layer. Flow fields simulated by the model are numericaly mixed to generate turbulent boundary layer with large velocity fluctuation. A numerical test result using the model showed a freestream turbulece eddies penetrated into the boundary layer, and demonstrated the effectiveness of the model for the simulation of turbulent boudary layer with freestream turbulence.
日本流体力学会の論文
2006-09-05