相関法における異常ベクトルの検出と流速補正の新手法

抄録

When applying correlation techniques to visualized images erroneous velocity vectors are often obtained. In this paper, new methods for detecting erroneous velocity vectors by checking the local continuity of flow are proposed. Differently defined several divergences of a flow are utilized for the detection. A re-correction method of the corrected velocity vectors is also presented. The SOLA algorithm (numerical solution algorithm for transient fluid flow) is used for the image processed data. The applied results of these methods to a confluence flow are indicated.