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More electric aircraft (MEA) include higher power ratings and more power electronics than conventional aircraft. With electrification comes increased multi-physical interaction between power systems, especially in electrical and thermal domains. It is desirable to develop an accurate and fast systemlevel model that captures the dynamics of multiple energy domains over the course of candidate mission...
Multiple time-scaled zero-dimensional models are used to simulate the time resolved number densities of multiple reactive oxygen and nitrogen species(RONs), including O3, NO2, NO3, N2O, N2O5, H2O2, HNO2 and HNO3, in a humid air plasma process at atmospheric pressure. Simulated is a total of 26 ionic species, electrons and 26 neutral species including multiple excited states. From the local Electron...
The presence of optical turbulence in video acquired by cameras viewing scenes at long distances can contribute significantly to degradation. This problem arises routinely, for example, in astronomy where objects of interest reside beyond the earth's atmosphere. Optical turbulence introduces time-varying perturbations in the images as well as blurring. In this paper, we introduce a method for suppressing...
An air-ocean-wave modeling system has been developed by the Naval Research Laboratory to provide improved predictive capabilities to the warfighter in regions that include an oceanic component. Each of the three operational models, run in a standalone mode, have provided 48 to 96 hour forecast guidance for the past several years. Utilizing the Earth System Modeling Framework, a model coupler exchanges...
Hypersonic atmospheric plasmas are difficult to simulate in a laboratory setting because they are high density (∼1015 – 1020 m−3 depending on altitude) and low temperature (∼2 – 5 eV)12. Helicon sources are capable of creating plasma with these requirements3. A 15-cm-diamter helicon source has been designed, fabricated and tested at the University of Michigan Plasmadynamics and Electric Propulsion...
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