NASA SBIR 2010 Solicitation

FORM B - PROPOSAL SUMMARY


PROPOSAL NUMBER: 10-1 A2.09-9309
SUBTOPIC TITLE: Rotorcraft
PROPOSAL TITLE: A Computational Tool for Helicopter Rotor Noise Prediction

SMALL BUSINESS CONCERN (Firm Name, Mail Address, City/State/Zip, Phone)
D&P, LLC
3409 N. 42nd Place
Phoenix, AZ 85018 - 5961
(602) 957-2868

PRINCIPAL INVESTIGATOR/PROJECT MANAGER (Name, E-mail, Mail Address, City/State/Zip, Phone)
Lei Tang
tanglei@d-p-llc.com
3409 N. 42nd Place
Phoenix, AZ 85018 - 5961
(602) 957-2868

Estimated Technology Readiness Level (TRL) at beginning and end of contract:
Begin: 1
End: 4

TECHNICAL ABSTRACT (Limit 2000 characters, approximately 200 words)
This SBIR project proposes to develop a computational tool for helicopter rotor noise prediction based on hybrid Cartesian grid/gridless approach. The uniqueness of this approach is to achieve fully automated grid generation without grid overlapping. As a result, the resulting software will enjoy great ease of use with minimum human interference. There is no grid distortion in the majority of the computational domain. One can apply the best available flow solver which may not be possible to use in the unstructured grid approach. All are important for achieving accurate prediction of helicopter rotor aerodynamics and near-field acoustics. In Phase I, the high-speed impulsive noise will be first investigated and in Phase II, the blade-vortex interaction noise will be further explored.

POTENTIAL NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
Both military concern of detection and community concern of noise pollution have stimulated NASA to actively pursue various noise reduction techniques. This further pushes NASA to look for external noise prediction methods for manned and unmanned rotorcraft. The proposed computational tool can be used by NASA to explore on-blade active flow control techniques such as zero-mass jets.

POTENTIAL NON-NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
The developed software can be used by helicopter industry like Bell Helicopter, Sikorsky, and Boeing for prediction of helicopter rotor aerodynamics and near-field acoustics. NAVAIR can use it to investigate the interaction of helicopter and ship air wake.

TECHNOLOGY TAXONOMY MAPPING (NASA's technology taxonomy has been developed by the SBIR-STTR program to disseminate awareness of proposed and awarded R/R&D in the agency. It is a listing of over 100 technologies, sorted into broad categories, of interest to NASA.)
Aerodynamics
Analytical Methods
Models & Simulations (see also Testing & Evaluation)
Software Tools (Analysis, Design)


Form Generated on 09-03-10 12:12