Next Generation Modeling Technology for High Speed Rotorcraft

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX08CA12C
Agency Tracking Number: 066544
Amount: $599,829.00
Phase: Phase II
Program: SBIR
Awards Year: 2008
Solicitation Year: 2006
Solicitation Topic Code: A2.10
Solicitation Number: N/A
Small Business Information
34 Lexington Avenue, Ewing, NJ, 08618-2302
DUNS: 096857313
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Todd Quackenbush
 Principal Investigator
 (609) 538-0444
Business Contact
 Barbara Agans
Title: Business Official
Phone: (609) 538-0444
Research Institution
Development of a new generation of high speed rotorcraft has been hampered by both an absence of strong predictive methods for rotors operating at very high advance ratio and a dearth of relevant test data. Phase I initiated work on these challenges with rotor tests and development of enhanced analyses for high speed flight. Phase I testing produced useful data on model scale autorotating rotors at advance ratios up to 1.7, thereby supporting analysis development and laying the groundwork for further Phase II testing. Enhanced yawed flow models for comprehensive rotorcraft analyses were also investigated and an enhanced lifting surface blade/wake model was developed and validated for improved modeling in this regime. Additionally, Phase I studied CFD grid generation and flow analysis methods for improved modeling of reversed and strong spanwise flows. Phase II will see further high advance ratio rotor tests, up to 2.5, and CFD analysis supporting the development of new validated models suitable for extreme yawed flow. These new models will be incorporated into CDI's commercial rotorcraft aerodynamics software for immediate use in rotorcraft design and flight simulation codes. A hierarchy of models will be developed supporting applications ranging from high resolution CFD to real-time simulation.

* Information listed above is at the time of submission. *

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