About

HART II - 2nd Higher Harmonic Control (HHC) Aeroacoustic Rotor Test

HART II was a common project of US Army AFDD (today DEVCOM AvMC), NASA Langley, DLR, ONERA and DNW to investigate the physics of HHC on rotor blade aerodynamic loading, rotor blade tip vortices, rotor blade-vortex interaction (BVI) noise radiation, rotor blade dynamics, and rotor vibration.

2001: Test in the Large Low-speed Facility (LLF) of the DNW using DLR’s Bo105 40 % Mach scaled (R = 2 m) hingeless model rotor for generation of a most comprehensive data base. For the HART II International Workshop (2005-2012) parts of the data base were opened to industry and academia worldwide for code validation purposes.

HART II
Credit:

DNW