Large-Eddy Simulation of structured porous coatings
Large-Eddy Simulation of structured porous coatings
Porous coated cylinders have the potential to reduce the vortex shedding tonal noise as well as broadband noise compared to an uncoated cylinder, although the mechanism of noise reduction is not fully understood. Recent studies show that such benefits can be obtained for both randomised porous coatings as well as structured porous coatings. These coatings have been gaining interest due to their potential application in various fields, such as landing gear struts, wind turbine structures and heat exchangers. The current study presents the first fully resolved Large-Eddy Simulation (LES) of a Structured Porous Coated Cylinder (SPCC). High-fidelity LES data is presented modelling a spanwise section at Re = 73,000 (based on outer diameter). Wake profiles of streamwise mean and RMS velocity profiles are presented and compared with an uncoated cylinder and forms a basis to inform and improve Darcy-Forchheimer porous modelling. Boundary layer development on the inner cylinder and shear layer trajectory is also presented. Unsteady data is recorded using a novel solver-independent HDF5-based I/O library developed by Upstream CFD GmbH.
153-167
Naicker, C.J.
e0887caa-3769-41c9-bee8-4b071214d92e
Arcondoulis, E.J.G.
4e0c8bdf-1810-4d4e-b8e8-9ba9ccd6b746
Tyacke, James C.
3763adc5-b119-4cbd-96a5-3c315668db79
Vadlamani, Nagabhushana Rao
b7db5378-3b67-4400-a224-bba845a2d8ec
3 December 2024
Naicker, C.J.
e0887caa-3769-41c9-bee8-4b071214d92e
Arcondoulis, E.J.G.
4e0c8bdf-1810-4d4e-b8e8-9ba9ccd6b746
Tyacke, James C.
3763adc5-b119-4cbd-96a5-3c315668db79
Vadlamani, Nagabhushana Rao
b7db5378-3b67-4400-a224-bba845a2d8ec
Naicker, C.J., Arcondoulis, E.J.G. and Tyacke, James C.
(2024)
Large-Eddy Simulation of structured porous coatings.
Vadlamani, Nagabhushana Rao, Tyacke, J.C. and Vadlamani, N.R.
(eds.)
In Proceedings of the Cambridge Unsteady Flow Symposium 2024. CUFS 2024.
Springer Cham.
.
(doi:10.1007/978-3-031-69035-8_9).
Record type:
Conference or Workshop Item
(Paper)
Abstract
Porous coated cylinders have the potential to reduce the vortex shedding tonal noise as well as broadband noise compared to an uncoated cylinder, although the mechanism of noise reduction is not fully understood. Recent studies show that such benefits can be obtained for both randomised porous coatings as well as structured porous coatings. These coatings have been gaining interest due to their potential application in various fields, such as landing gear struts, wind turbine structures and heat exchangers. The current study presents the first fully resolved Large-Eddy Simulation (LES) of a Structured Porous Coated Cylinder (SPCC). High-fidelity LES data is presented modelling a spanwise section at Re = 73,000 (based on outer diameter). Wake profiles of streamwise mean and RMS velocity profiles are presented and compared with an uncoated cylinder and forms a basis to inform and improve Darcy-Forchheimer porous modelling. Boundary layer development on the inner cylinder and shear layer trajectory is also presented. Unsteady data is recorded using a novel solver-independent HDF5-based I/O library developed by Upstream CFD GmbH.
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Published date: 3 December 2024
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Local EPrints ID: 506967
URI: http://eprints.soton.ac.uk/id/eprint/506967
PURE UUID: e2d3131e-3332-49be-8a2b-ae5a0fdceb63
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Date deposited: 24 Nov 2025 17:46
Last modified: 25 Nov 2025 03:20
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Contributors
Author:
C.J. Naicker
Author:
E.J.G. Arcondoulis
Author:
James C. Tyacke
Editor:
Nagabhushana Rao Vadlamani
Editor:
J.C. Tyacke
Editor:
N.R. Vadlamani
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