Filament inclination effect on turbulent canopy flows
When flexible filaments are exposed to flow, they naturally reconfigure into streamlined shapes---but how filament inclination alone alters turbulence remains unclear. Using large-eddy simulations of inclined filament canopies, we show that tilting the filaments transforms the flow from a canopy-turbulence regime to one where the canopy is largely sheltered from the outer flow, even yielding net drag reduction. A unified virtual-origin framework explains this transition, linking geometry, turbulence penetration, and drag.
Authors
- Shane Nicholas (ORCID: https://orcid.org/0000-0002-6978-8313)
- Giulio Foggi Rota (ORCID: https://orcid.org/0000-0002-4361-6521)
- Mohammad Omidyeganeh (ORCID: https://orcid.org/0000-0002-4140-2810)
- Alessandro Monti (ORCID: https://orcid.org/0000-0003-2231-2796)
- Marco Edoardo Rosti (ORCID: https://orcid.org/0000-0002-9004-2292)
- Alfredo Pinelli (ORCID: https://orcid.org/0000-0001-5564-9032)
Institutions
- Northampton Community College (US)
- Okinawa Institute of Science and Technology Graduate University (JP)
- St George's, University of London (GB)
- City, University of London (GB)
Publication Details
- Journal
- Physical Review Fluids
- Published
- 2025-11-12
- DOI
- https://doi.org/10.1103/y1vd-bby3
- Primary Topic
- Fluid Dynamics and Turbulent Flows
- Type
- article
- Field-Weighted Citation Impact
- 0.00