Project 14: HeliQuiet

Summary of Services Performed: Couple RCAS with CFD codes to provide a design environment for quieter rotor blades

Helicopter Quieting Program (University of Maryland/Stanford University) As a part of DARPA’s Helicopter Quieting Program (HPQ), ART supported the integration of RCAS with the CFD code from Stanford University (SUmb). This activity involved the development of UH-60 aeroelastic rotor model and analysis of the model in high speed, low speed and high thrust conditions. The results of the coupled code compared well with flight test results.

Helicopter Quieting Program As a part of DARPA’s Helicopter Quieting Program (HPQ), ART supported the integration of RCAS with the Rockwell Scientific CFD code WINDUS. This activity involved the development of UH-60 aeroelastic rotor model and analysis of the model in high speed, low speed and high thrust conditions. The results of the coupled code compared well with flight test results. In addition, ART developed an aeroelastic rotor model of HART II and completed the required initial runs prior to the coupled CFD-RCAS runs.

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