Hybrid Axial and Cross-Flow Fan Propulsion for Transonic Blended Wing Body Aircraft

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX11CD95P
Agency Tracking Number: 104503
Amount: $100,000.00
Phase: Phase I
Program: SBIR
Awards Year: 2011
Solicitation Year: 2010
Solicitation Topic Code: A2.10
Solicitation Number: N/A
Small Business Information
321 Route 5, Elbridge, NY, 13060-0321
DUNS: 621501712
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Joseph Kummer
 Principal Investigator
 (315) 252-2559
Business Contact
 Joseph Kummer
Title: Business Official
Phone: (315) 252-2559
Email: joseph.kummer@propulsivewing.com
Research Institution
The challenges of the next century of aviation will require innovative and revolutionary concepts to meet air transportation demands. One NASA vision for future transport-sized aircraft includes the blended-wing-body (BWB) platform with embedded, distributed propulsion as a means for increased efficiency and reduced noise. In cruise, embedded propulsion benefits from boundary layer ingestion and wake filling, resulting in high propulsive efficiency. However, several challenges exist, including inlet nozzle design, propulsor design for ingestion of highly non-uniform inflow, and propulsor/airframe support structure optimization. This work proposes a hybrid turboelectric propulsion system incorporating small embedded, distributed cross-flow fans (CFF) for boundary layer control and wake filling, and much larger axial fans for primary thrust. Bringing together the best qualities of both axial and CFF propulsion, a substantial improvement in overall vehicle efficiency is possible. CFD and analytical analyses will be used to investigate the flow field and range of application for such a system. Comparisons will be made with published baseline designs with respect to power requirements, component weights, support structure, and other key parameters.

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

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