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Experiments in Fluids

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01-04-2021 | Letter

A fuzzy cluster method for turbulent/non-turbulent interface detection

Authors: Khaled Younes, Bradley Gibeau, Sina Ghaemi, Jean-Pierre Hickey

Published in: Experiments in Fluids | Issue 4/2021

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Abstract

A turbulent/non-turbulent interface detection method is proposed based on fuzzy clustering of the instantaneous streamwise velocity field. The fuzzy cluster method overcomes the limitations of standard detection methods by removing the user bias in thresholding and window selection and not relying on the calculation of mean flow properties. The robust detection algorithm is applied to three experimental wall-bounded turbulent flows, and it is found to compare favorably against existing interface identification methods.

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Title: A fuzzy cluster method for turbulent/non-turbulent interface detection
Authors: Khaled Younes
Bradley Gibeau
Sina Ghaemi
Jean-Pierre Hickey
Publication date: 01-04-2021
Publisher: Springer Berlin Heidelberg
Published in: Experiments in Fluids / Issue 4/2021
Print ISSN: 0723-4864
Electronic ISSN: 1432-1114
DOI: https://doi.org/10.1007/s00348-021-03169-9

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