Rotor-Airwake Aerodynamic Coupling in Real-Time Simulation

Award Information
Agency:
Department of Defense
Branch
n/a
Amount:
$149,974.00
Award Year:
2011
Program:
SBIR
Phase:
Phase I
Contract:
N68335-11-C-0087
Agency Tracking Number:
N103-195-0143
Solicitation Year:
2010
Solicitation Topic Code:
N103-195
Solicitation Number:
2010.3
Small Business Information
Combustion Research and Flow Technology, Inc.
6210 Kellers Church Road, Pipersville, PA, -
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
929950012
Principal Investigator:
Jeremy Shipman
Research Scientist
(215) 766-1520
shipman@craft-tech.com
Business Contact:
Brian York
Treasurer&Principal Sci
(215) 766-1529
york@craft-tech.com
Research Institution:
Stub




Abstract
An innovative approach for incorporating the coupled interaction between a ship airwake and rotor downwash in real-time dynamic interface simulations is proposed. The approach will use a database of high-fidelity ship-alone and coupled rotor-ship airwake CFD simulations to train an artificial neural network (ANN) based model of the recirculation effects due to the rotor downwash interaction with ship structures. Once trained, the ANN model will provide a real-time correction factor to the rotor inflow velocities used by the rotor model in the flight simulation. The ANN model will thus provide a portable, fast-running, plug-in model to the flight simulator that will work with the current rotor and airwake models employed in the NAVAIR Manned Flight Simulator (MFS). Phase I will evaluate the feasibility of this approach for a single ship-rotorcraft combination and a fixed approach path, and assess the suitability of the model by comparing to a fully coupled CFD simulation. In Phase II, the ANN model would be trained with a larger database of simulations, expanding the applicability of the model for a full helicopter simulation, and be implemented into the MFS flight simulator. Phase III would involve expanding the model for all ship-aircraft combinations of interest.

* information listed above is at the time of submission.

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