TURNS: A Free-Wake Euler/Navier-Stokes Numerical Method for Helicopter Rotors. Computational capabilities of a numerical procedure, called TURNS (transonic unsteady rotor Navier-Stokes), to calculate the aerodynamics and acoustics (high-speed impulsive noise) out to several rotor diameters are summarized. The procedure makes it possible to obtain the aerodynamics and acoustics information in one single calculation. The vortical wave and its influence, as well as the acoustics, are captured as part of the overall flowfield solution. The accuracy and suitability of the TURNS method is demonstrated through comparisons with experimental data
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References in zbMATH (referenced in 4 articles )
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- Bangalore, A.; Sankar, L.N.: Numerical analysis of aerodynamic performance of rotors with leading edge slats (1996)
- Strawn, Roger C.; Biswas, Rupak: Numerical simulations of helicopter aerodynamics and acoustics (1996)
- Srinivasan, G.R.; Baeder, J.D.; Obayashi, Shigeru; McCroskey, W.J.: Flowfield of a lifting rotor in hover: A Navier-Stokes simulation (1992)