Vincent Proulx-Cabana, Minh Tuan Nguyen, Sebastien Prothin, Guilhem Michon and Éric Laurendeau
Article (2022)
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Open Access to the full text of this document Published Version Terms of Use: Creative Commons Attribution Download (4MB) |
Abstract
This study presents a hybrid non-linear unsteady vortex lattice method-vortex particle method (NL UVLM-VPM) to investigate the aerodynamics of rotor blades hovering in and out of ground effect. The method is of interest for the fast aerodynamic prediction of helicopter and smaller rotor blades. UVLM models the vorticity along the rotor blades and near field wakes with panels that are then converted into their equivalent vortex particle representations. The standard Vreman subgrid scale model is incorporated in the context of a large eddy simulation for mesh-free VPM to stabilize the wake development via particle strength exchange (PSE). The computation of the pairwise interactions in the VPM are accelerated using the fast-multipole method. Non-linear UVLM is achieved with a low computational cost viscous-inviscid alpha coupling algorithm through a stripwise 2D Reynolds-averaged Navier–Stokes (RANS) or empirical database. The aerodynamics of the scaled S76 rotor blades in and out of ground effect from the hover prediction workshop is investigated with the proposed algorithm. The results are validated with experimental data and various high-fidelity codes.
Uncontrolled Keywords
Subjects: | 2100 Mechanical engineering > 2100 Mechanical engineering |
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Department: | Department of Mechanical Engineering |
Research Center: | Other |
Funders: | NSERC / CRSNG, CAE Inc., Collaborative R&D grant, Canada Research Chairs Program |
Grant number: | CRDPJ 486001 |
PolyPublie URL: | https://publications.polymtl.ca/50486/ |
Journal Title: | Fluids (vol. 7, no. 2) |
Publisher: | MDPI |
DOI: | 10.3390/fluids7020081 |
Official URL: | https://doi.org/10.3390/fluids7020081 |
Date Deposited: | 18 Apr 2023 14:59 |
Last Modified: | 15 Mar 2025 01:12 |
Cite in APA 7: | Proulx-Cabana, V., Nguyen, M. T., Prothin, S., Michon, G., & Laurendeau, É. (2022). A hybrid non-linear unsteady vortex lattice-vortex particle method for rotor blades aerodynamic simulations. Fluids, 7(2), 30 pages. https://doi.org/10.3390/fluids7020081 |
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