Automated topology classification method for instantaneous velocity fields |
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Authors: | S Depardon J J Lasserre L E Brizzi J Borée |
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Institution: | 1.PSA Peugeot Citro?n,Direction de la Recherche et de l’Innovation Automobile,Vélizy-Villacoublay Cedex,France;2.Laboratoire d’Etudes Aérodynamiques,Futuroscope Chasseneuil,France |
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Abstract: | Topological concepts provide highly comprehensible representations of the main features of a flow with a limited number of
elements. This paper presents an automated classification method of instantaneous velocity fields based on the analysis of
their critical points distribution and feature flow fields. It uses the fact that topological changes of a velocity field
are continuous in time to extract large scale periodic phenomena from insufficiently time-resolved datasets. This method is
applied to two test-cases : an analytical flow field and PIV planes acquired downstream a wall-mounted cube. |
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