The evolution of solar wind strahl with heliospheric distance
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Geophysical Research"
DOI: 10.1002/2016ja023656
Abstract: Field-aligned beams of suprathermal electrons, known as strahl, are a frequently observed constituent of solar wind plasma. However, the formation and interplanetary evolution of the strahl electron populations has yet to be fully understood. As… read more here.
Keywords: evolution; pitch angle; distance; solar wind ... See more keywords
Comparison of Cylindrical Interplanetary Flux-Rope Model Fitting with Different Boundary Pitch-Angle Treatments
Sign Up to like & getrecommendations! Published in 2019 at "Solar Physics"
DOI: 10.1007/s11207-019-1435-5
Abstract: Interplanetary flux ropes (IFRs) observed in the solar wind have been investigated through application of the Lundquist model, which is a cylindrical flux-rope model with a constant-α$\alpha $ force-free magnetic-field model. This study evaluated two… read more here.
Keywords: flux rope; model; flux; pitch angle ... See more keywords
Low wind speed aerodynamics of asymmetric blade H-Darrieus wind turbine-its desired blade pitch for performance improvement in the built environment
Sign Up to like & getrecommendations! Published in 2020 at "Journal of the Brazilian Society of Mechanical Sciences and Engineering"
DOI: 10.1007/s40430-020-02408-0
Abstract: An asymmetric blade vertical-axis wind turbine (VAWT) is one of the emerging technologies for harvesting power in the built environment, which has low wind speed. Although asymmetric blade improves VAWT’s performance, the effect of blade… read more here.
Keywords: pitch; wind; pitch angle; asymmetric blade ... See more keywords
Equivalent modeling of wind energy conversion considering overall effect of pitch angle controllers in wind farm
Sign Up to like & getrecommendations! Published in 2018 at "Applied Energy"
DOI: 10.1016/j.apenergy.2018.03.180
Abstract: Abstract The correct electric power fluctuation process of a wind farm is essential for the operation and studying of the power grid integrated with wind power. A complete wind energy conversion model, that should take… read more here.
Keywords: angle controllers; wind; wind farm; pitch angle ... See more keywords
Numerical analysis of the Fokker-Planck equation with adiabatic focusing: Realistic pitch-angle scattering
Sign Up to like & getrecommendations! Published in 2017 at "Advances in Space Research"
DOI: 10.1016/j.asr.2016.10.027
Abstract: Abstract We solve the focused transport equation of cosmic rays numerically to investigate non-isotropic models of the pitch-angle scattering coefficient. In previous work, the Fokker-Planck equation was solved either analytically by using approximations, or by… read more here.
Keywords: equation; fokker planck; angle scattering; pitch angle ... See more keywords
Aerodynamic characteristics of a tip-jet fan with a large blade pitch angle
Sign Up to like & getrecommendations! Published in 2019 at "Aerospace Science and Technology"
DOI: 10.1016/j.ast.2019.04.052
Abstract: Abstract This work aims to investigate the availability of a tip-jet on a ducted fan under large blade pitch angle and high solidity conditions. The aerodynamic performance and flow field of a ducted fan in… read more here.
Keywords: blade pitch; jet; tip jet; pitch angle ... See more keywords
Effect of Hot He+ Ions on the Electron Pitch Angle Scattering Driven by H+, He+, and O+ Band EMIC Waves
Sign Up to like & getrecommendations! Published in 2019 at "Geophysical Research Letters"
DOI: 10.1029/2019gl083456
Abstract: In this paper, we find that hot He+ ions significantly alter the kinetic dispersion relation of electromagnetic ion cyclotron (EMIC) waves and thus strongly affect the wave‐driven electron pitch angle scattering rates. Increasing hot He+… read more here.
Keywords: angle scattering; band emic; hot ions; pitch angle ... See more keywords
Localized Heating of the Martian Topside Ionosphere Through the Combined Effects of Magnetic Pumping by Large‐Scale Magnetosonic Waves and Pitch Angle Diffusion by Whistler Waves
Sign Up to like & getrecommendations! Published in 2020 at "Geophysical Research Letters"
DOI: 10.1029/2019gl086408
Abstract: We present Mars Atmosphere and Volatile EvolutioN (MAVEN) observations of periodic ( ∼ 25 s) large‐scale (hundreds of km) magnetosonic waves propagating into the Martian dayside upper ionosphere. These waves adiabatically modulate the superthermal electron… read more here.
Keywords: scale magnetosonic; pitch angle; magnetosonic waves; large scale ... See more keywords
Pitch-angle distribution of accelerated electrons in 3D current sheets with magnetic islands
Sign Up to like & getrecommendations! Published in 2021 at "Astronomy and Astrophysics"
DOI: 10.1051/0004-6361/202039220
Abstract: Aims. This research aims to explore variations of electron pitch-angle distribution (PAD) during spacecraft cross reconnecting current sheets (RCSs) with magnetic islands. The results can benchmark the sampled characteristic features with realistic PADs derived from… read more here.
Keywords: magnetic islands; pitch angle; current sheets; field ... See more keywords
Geodesic modes driven by plasma fluxes during oblique NB heating in tokamaks
Sign Up to like & getrecommendations! Published in 2018 at "Physics of Plasmas"
DOI: 10.1063/1.5039729
Abstract: Some relevant aspects of the instability of Geodesic Acoustic Modes (GAMs) driven by Neutral Beam (NB) injection are studied, in particular its dependence on the injection direction, that is, co- or counter-injection, and on the… read more here.
Keywords: pitch angle; critical energy; injection; instability ... See more keywords
Modulation of ion pitch angle in the presence of large-amplitude, electromagnetic ion cyclotron (EMIC) waves: 1D hybrid simulation
Sign Up to like & getrecommendations! Published in 2020 at "Physics of Plasmas"
DOI: 10.1063/5.0019769
Abstract: Large-amplitude electromagnetic ion cyclotron (EMIC) waves induce unique dynamics of charged particle movement in the magnetosphere. In a recent study, modulation of the ion pitch angle in the presence of large-amplitude EMIC waves is observed,… read more here.
Keywords: emic waves; ion; modulation; pitch angle ... See more keywords