Journal article

Towards an improved spatial representation of a boundary layer from the attached eddy model

Felix Eich, Charitha M de Silva, Ivan Marusic, Christian J Kahler

Physical Review Fluids | American Physical Society | Published : 2020

Abstract

This study compares the predicted synthetic flow fields generated based on the representative structures of the attached eddy model to experimental data captured using Particle Image Velocimetry of a turbulent boundary layer. To this end, wall-parallel and cross-stream planar fields are analyzed qualitatively and quantitatively by examining instantaneous flow features and by statistical two-point correlation functions, respectively. Our results reveal that although single-point flow statistics are in good agreement with the experimental data, a comparison of instantaneous flow fields and multipoint statistics between the attached eddy model and experiments shows differences in the spatial co..

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Grants

Awarded by Deutsche Forschungsgemeinschaft (DFG)


Funding Acknowledgements

The authors thank the Deutsche Forschungsgemeinschaft (DFG) for financial support via the project "Analysis of turbulent boundary layer subject to pressure gradients at high Reynolds numbers using multiple high-resolution camera systems" (Grant No. KA1808/14) and the Australian Research Council.