Search engine for discovering works of Art, research articles, and books related to Art and Culture
Javascript must be enabled to continue!
Modulating action of low frequency oscillations on high frequency instabilities in Hall thrusters
View through CrossRef
It is found that the low frequency oscillations have modulating action on high frequency instabilities in Hall thrusters. The physical mechanism of this modulation is discussed and verified by numerical simulations. Theoretical analyses indicate that the wide-range fluctuations of plasma density and electric field associated with the low frequency oscillations affect the electron drift velocity and anomalous electron transport across the magnetic field. The amplitude and frequency of high frequency oscillations are modulated by low frequency oscillations, which show the periodic variation in the time scale of low frequency oscillations.
AIP Publishing
Title: Modulating action of low frequency oscillations on high frequency instabilities in Hall thrusters
Description:
It is found that the low frequency oscillations have modulating action on high frequency instabilities in Hall thrusters.
The physical mechanism of this modulation is discussed and verified by numerical simulations.
Theoretical analyses indicate that the wide-range fluctuations of plasma density and electric field associated with the low frequency oscillations affect the electron drift velocity and anomalous electron transport across the magnetic field.
The amplitude and frequency of high frequency oscillations are modulated by low frequency oscillations, which show the periodic variation in the time scale of low frequency oscillations.
Related Results
Structures of the asymmetrical bursting oscillation attractors and their bifurcation mechanisms
Structures of the asymmetrical bursting oscillation attractors and their bifurcation mechanisms
The main purpose of this study is to investigate the characteristics as well as the bifurcation mechanisms of the bursting oscillations in the asymmetrical dynamical system with tw...
High-Frequency Instabilities in Cylindrical Flame Tubes: Feedback Mechanism and Damping
High-Frequency Instabilities in Cylindrical Flame Tubes: Feedback Mechanism and Damping
Thermoacoustic instabilities are a major concern in gas turbine combustion chambers today. In the last decades research interest in thermoacoustic instabilities has focused on low ...
Uncoupling the roles of firing rates and spike bursts in shaping the STN-GPe beta band oscillations
Uncoupling the roles of firing rates and spike bursts in shaping the STN-GPe beta band oscillations
AbstractThe excess of 15-30 Hz (β-band) oscillations in the basal ganglia is one of the key signatures of Parkinson’s disease (PD). The STN-GPe network is integral to generation an...
Cross-strataco-occurrence of ripples with theta-frequency oscillations in the hippocampus of foraging rats
Cross-strataco-occurrence of ripples with theta-frequency oscillations in the hippocampus of foraging rats
AbstractBackground and motivationBrain rhythms have been postulated to play central roles in animal cognition. A prominently reported dichotomy of hippocampal rhythms, driven prima...
MATHEMATICAL PENDULUM MODEL WITH MOBILE SUSPENSION POINT
MATHEMATICAL PENDULUM MODEL WITH MOBILE SUSPENSION POINT
Background. The new dynamic problem, which is posed and solved in this article, is a theoretical generalization of the well-known classical problem of free oscillations of a mathem...
COUPLING OSCILLATIONS OF LATTICES OF DIFFERENT DIELECTRIC RESONATORS
COUPLING OSCILLATIONS OF LATTICES OF DIFFERENT DIELECTRIC RESONATORS
Background. The development of many elements of modern communication systems is increasingly based on the use of various types of dielectric resonators (DR). The theory of coupled ...
Synchronization of oscillatory growth prepares fungal hyphae for fusion
Synchronization of oscillatory growth prepares fungal hyphae for fusion
Communication is crucial for organismic interactions, from bacteria, to fungi, to humans. Humans may use the visual sense to monitor the environment before starting acoustic intera...
High-Lewis number premixed flame instabilities
High-Lewis number premixed flame instabilities
Lean premixtures of high-molecular weight practical fuels typically have an associated Lewis number (Le) in excess of one and are susceptible to diffusive-thermal instabilities dep...