Non-Equilibrium Thermodynamic Issues Related to On-Demand Systems
Results from past research and research recently initiated are presented here in order to illustrate the need for a multi-fidelity (higher- and reduced-order) dynamic modeling, simulation, and optimization capability that results in aircraft subsystem integrations that minimize waste heat generation and reduce overall system energy requirements across a range of mission profiles. The examples presented provide a basis for the work envisioned as well as illustrations of the non-equilibrium thermodynamic effects of unsteady or transient operation on aircraft synthesis/design and operation. The three examples given involve i) the mission-integrated synthesis/design optimization of an advanced tactical aircraft system with a focus on its transient fuel loop subsystem, ii) the effects of mission segment discretizations on capturing the dynamics of a scram-jet hypersonic vehicle mission on vehicle performance, and iii) the effects of unsteady aerodynamics on flight vehicle operation.
M. R. Von Spakovsky et al., "Non-Equilibrium Thermodynamic Issues Related to On-Demand Systems," 48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition, American Institute of Aeronautics and Astronautics (AIAA), Jan 2010.
The definitive version is available at https://doi.org/10.2514/6.2010-289
48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition
Mechanical and Aerospace Engineering
Article - Conference proceedings
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