The proceedings of the JSME annual meeting
Online ISSN : 2433-1325
II.01.1
Session ID : K-1341
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K-1341 Performance of a PIV based on a recursive gradient-based method for deformation of flow
Masa-aki IshikawaYuichi MuraiFujio Yamamoto
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Abstract
A lot of PIV algorithm has been dealt with a translation motion. Therefore, error vectors are obtained for strong deformed flows. Nowadays, recursive processes of a cross-correlation PIV and a gradient-based PIV are used as the control of the influence of strong deformed flows. However, these recursive processes do not correspond to strong deformed flows perfectly. In this study, unknown valuables of the gradient-based method including the velocity gradient tensor are employed because of overcoming of strong deformed flows. The performance of a recursive gradient-based method is estimated by a simulation of a Taylor-Green vortex flow.
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© 2001 The Japan Society of Mechanical Engineers
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