Experiments and Modeling of a Compliant Wall Response to a Turbulent Boundary Layer with Dynamic Roughness Forcing
نویسندگان
چکیده
The response of a compliant surface in turbulent boundary layer forced by dynamic roughness is studied using experiments and resolvent analysis. Water tunnel are carried out at friction Reynolds number Re??410, with flow measurements taken 2D particle image velocimetry (PIV) stereo digital correlation (DIC). narrow band forcing enables analysis the responses coherent frequency, corresponding Fourier modes extracted compared modes. capture structures experimental eddy viscosity improves matching. comparison smooth wall predicts virtual feature normal velocity case. revealed data conditional average informed prediction. Finally, change to due influence compliance modeling condition as deterministic framework.
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ژورنال
عنوان ژورنال: Fluids
سال: 2021
ISSN: ['2311-5521']
DOI: https://doi.org/10.3390/fluids6050173