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A Framework for Simulating Turbine-Based Combined-Cycle Inlet Mode-TransitionA simulation framework based on the Memory-Mapped-Files technique was created to operate multiple numerical processes in locked time-steps and send I/O data synchronously across to one-another to simulate system-dynamics. This simulation scheme is currently used to study the complex interactions between inlet flow-dynamics, variable-geometry actuation mechanisms, and flow-controls in the transition from the supersonic to hypersonic conditions and vice-versa. A study of Mode-Transition Control for a high-speed inlet wind-tunnel model with this MMF-based framework is presented to illustrate this scheme and demonstrate its usefulness in simulating supersonic and hypersonic inlet dynamics and controls or other types of complex systems.
Document ID
20120018049
Acquisition Source
Glenn Research Center
Document Type
Conference Paper
Authors
Le, Dzu K. (NASA Glenn Research Center Cleveland, OH, United States)
Vrnak, Daniel R. (NASA Glenn Research Center Cleveland, OH, United States)
Slater, John W. (NASA Glenn Research Center Cleveland, OH, United States)
Hessel, Emil O. (Georgia Inst. of Tech. Atlanta, GA, United States)
Date Acquired
August 25, 2013
Publication Date
July 30, 2012
Subject Category
Aerodynamics
Report/Patent Number
E-18463
AIAA Paper 2012-4144
Meeting Information
Meeting: 48th AIAA/ASME/SAE/ASEE Joint Propulsion Conference
Location: Atlanta, GA
Country: United States
Start Date: July 30, 2012
End Date: August 1, 2012
Sponsors: Society of Automotive Engineers, Inc., American Society for Engineering Education, American Inst. of Aeronautics and Astronautics, American Society of Mechanical Engineers
Funding Number(s)
WBS: WBS 599489.02.07.03.07
Distribution Limits
Public
Copyright
Public Use Permitted.

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