情報処理流体力学(DFD)による雑音を含む非圧縮性速度場補正法(流体工学,流体機械)

概要

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The velocity correction technique for incompressible velocity with noises is proposed by using the data-processing fluid dynamics (DFD). Two assumptions, that is, 1) the velocity field constructed by noises has the small structures, and 2) the velocity field satisfies the continuity equation for incompressible flow, are adopted. In assumption 1), the spatial filter is applied to remove the small structures. Also, Helmholtz's decomposition technique is applied to obtain the incompressible velocity, i.e., divergence free velocity. In order to validate the present approaches, Taylor-Green vortex flow and the square driven cavity flow are considered. The results show that the present techniques have the good velocity correction properties.
一般社団法人日本機械学会の論文
2008-02-25