Details

Autor(en) / Beteiligte

• van der Velden, W.C.P.
• Romani, G.
• Casalino, D.

Titel

Validation and insight of a full-scale S-76 helicopter rotor using the Lattice-Boltzmann Method

Ist Teil von

• Aerospace science and technology, 2021-11, Vol.118, p.107007, Article 107007

Ort / Verlag

Elsevier Masson SAS

Erscheinungsjahr

2021

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• This paper describes scale-resolving unsteady flow simulations performed using a Lattice-Boltzmann based solver, applied, for the first time, to a full-scale helicopter main rotor in forward flight. The simulation setup is obtained through a fully automated in-house developed workflow. Validation is performed by comparing thrust and power coefficients with reference wind tunnel data; with and without trimming based on an in-house developed Newton-Raphson trim algorithm. Results for different rotor advance ratios yield insight in both aerodynamic and acoustic quantities for the rotor, highlighting both mean as well as unsteady behavior. Finally, digital helicopter noise certification is performed by calculating the ground noise map for a helicopter in landing condition.