Computational and Theoretical Modeling of Acoustoelectrically Enhanced Brillouin Optomechanical Interactions in Piezoelectric Semiconductors.
Abstract not provided.
Storey, Matthew↗
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Results for “theoretical models”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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IC W18_meltshear Highlight: Ab initio P-T phase diagram, P-ρ cold shear modulus, and T-ρ melting curve of Pb vs. experiment and theoretical modeling [Slides]
Abstract not provided.
36 MATERIALS SCIENCE↗
Computational and Theoretical Modeling of Acoustoelectrically Enhanced Brillouin Optomechanical Interactions in Piezoelectric Semiconductors.
Abstract not provided.
Storey, Matthew↗
Theoretical Modeling of Reactor Relevant Conditions for Plasma Jet Driven Magneto-Inertial Fusion
The Charger Advanced Power and Propulsion Laboratory (CAPP), a laboratory within the Propulsion Research Center (PRC) at the University of Alabama in Huntsville (UAH) is working with Los Alamos National Laboratory (LANL). to develop models and inform on promising paths for high gain magneto-inertial fusion (MIF) conditions. This report provides a framework for identifying promising conditions for achieving ignition in plasma-jet-driven magneto-inertial fusion (PJMIF)[1]. As proposed, for the first part of the contract, UAH proposes to develop a gain over unity set of stagnation conditions to provide a state of plasma conditions to achieve to set long terms goals for the PJMIF program. Specifically, UAH will model PJMIF stagnation conditions to include radiation, heat transfer, two temperature energy equations, fusion reactivity and nonlocal fusion product deposition, but no hydrodynamics for these purposes. These calculations will use a stationary plasma model to reduce simulation complexity—focusing on a DT target at 10 keV. Subsequent work will include a DD plasma layer acting as an afterburner. UAH will assume an initial magnetic field without any consideration of the topology, just assume a field strength, most likely scaled with consideration of the local hall parameter. This effort will inform the team on the tradeoff between mass, peak target field, etc and the achievable gain.
70 PLASMA PHYSICS AND FUSION TECHNOLOGY↗
A THEORETICAL MODEL FOR SUNSPOT COOLNESS
Sunspots - current sheath and snowplow models for sunspot expansion
SUNSPOT↗
A theoretical model for predicting aluminum oxide particle size distributions in rocket exhausts.
Model derived describing oxide particle distribution obtained from internal burning cylindrically-perforated aluminized solid propellant grains
ROCKET EXHAUST↗
Theoretical model atmospheres of venus.
Venus atmosphere in several models noting Greenhouse Model B, ionospheric model, etc
VENUS ATMOSPHERE↗
Analysis of the F-corona according to the Mie theory. Part I - Mathematical formulation and uniqueness of the derived theoretical models
Mathematical model for removing integrals over scattering angle and particle size in analyzing observations of zodiacal light
INTERPLANETARY DUST↗
A Theoretical Model for Low-energy Proton Irradiated Silicon Solar Cells
Mathematical model for low energy proton irradiated silicon solar cells
SOLAR CELL↗
Analysis of the F-corona according to the Mie theory. Mathematical formulation and uniqueness of the derived theoretical models
Mathematical model formulation to remove integrals over scattering angle and particle size occuring in zodiacal light observation analysis
ZODIACAL LIGHT↗
A theoretical model for predicting aluminum oxide particle size distributions in rocket exhausts.
Model derived describing oxide particle distribution obtained from internal burning cylindrically-perforated aluminized solid propellant grains
PARTICLE SIZE↗
A theoretical model for determining turbine flowmeter sensitivity
Analytical model of turbine-type flowmeter guides in the selection of valid extrapolation of available calibration data. An expression for flowmeter performance is developed to include the effects of fluid friction, bearing drag, and magnetic drag upon helical rotor design.
Smith, R. L.↗
A theoretical model for the magnetic declination effect in the ionospheric F region.
Latitudinal and vertical current components effects included in longitudinal current system supporting steady state distribution in geomagnetic anomaly
IONOSPHERIC CURRENT↗
A theoretical model for the sharp flat plate in rarefied hypersonic flow.
Rarefied hypersonic flow model for sharp flat plate in strong interaction regimes, discussing inviscid and viscous shock and merged layers subregimes
Bush, W. B.↗
A theoretical model of the ionosphere dynamics with interhemispheric coupling
Dynamic model for ionospheric plasma with interhemispheric coupling
Mayr, H. G.↗
Theoretical model studies of wave transmission in semicircular canal ducts
Semicircular canal ducts dynamic behavior, using mathematical model for wave transmission of elastic fluid-filled toroidal shell in rigid channel
Anliker, M.↗
The design of exhaust mufflers using linearized theoretical models
Optimal design for noise attenuation by diesel engine exhaust mufflers using linearized acoustic models
Alfredson, R. J.↗
Theoretical model for the latitude dependence of the thermospheric annual and semiannual variations
A three-dimensional model for the annual and semiannual variations of the thermosphere is presented in which energy and diffusive mass transport associated with the global circulation are considered in a self-consistent form. It is shown that these processes play a major role in the thermosphere dynamics and account for a number of temperature and compositional phenomena.
Mayr, H. G.↗