Longitudinal waves of the average field in a cold turbulent plasma

1981 ◽  
Vol 24 (10) ◽  
pp. 822-825
Author(s):  
V. G. Gavrilenko ◽  
G. V. Dzhandieri
Keyword(s):  
Turbulent Plasma ◽  
Average Field ◽  
Longitudinal Waves

Average field of a laser beam self-focused in a turbulent plasma

1980 ◽  
Vol 51 (5) ◽  
pp. 2381
Author(s):  
M. S. Sodha ◽  
L. A. Patel
Keyword(s):  
Laser Beam ◽  
Turbulent Plasma ◽  
Average Field

MEASUREMENT OF ELECTRIC FIELD IN TURBULENT PLASMA BY THE METHOD OF SATELLITES OF FORBIDDEN TRANSITIONS IN HELIUM

1979 ◽  
Vol 40 (C7) ◽  
pp. C7-867-C7-868
Author(s):  
M. P. Brizhinev ◽  
S. V. Egorov ◽  
B. G. Eremin ◽  
A. V. Kostrov ◽  
A. D. Stepanushkin
Keyword(s):  
Electric Field ◽  
Turbulent Plasma ◽  
Forbidden Transitions

FIELD STRENGTH IN PULSED MERCURY ARCS

1965 ◽  
Vol 43 (4) ◽  
pp. 670-675 ◽  
Author(s):  
B. Ahlborn ◽  
A. J. Barnard ◽  
H. D. Campbell
Keyword(s):  
Field Strength ◽  
Mercury Vapor ◽  
Average Field ◽  
Arc Plasma ◽  
Cathode Fall ◽  
Arc Current ◽  
Mercury Electrodes ◽  
The Relationship ◽  
Pulsed Arc ◽  
Arc Current And Voltage

In a pulsed arc with mercury electrodes the average column field strength Eco was measured for different currents I, and the relationship [Formula: see text] was found. The variations of arc current and voltage with time indicate that the anode and cathode fall regions have a combined thickness of 3 × 10−6 cm, and an average field strength of 2 × 106 V/cm. The arc plasma is formed mainly from mercury vapor, rather than from the surrounding gas.

scholarly journals A numerical investigation on impulse-induced nonlinear longitudinal waves in pantographic beams

2021 ◽  
pp. 108128652110108
Author(s):  
Emilio Turco ◽  
Emilio Barchiesi ◽  
Francesco dell’Isola
Keyword(s):  
Numerical Simulations ◽  
Mechanical Response ◽  
Integration Scheme ◽  
Present Contribution ◽  
Longitudinal Waves ◽  
Deformation Regime ◽  
Impulsive Loads ◽  
Unit Cells ◽  
Statics And Dynamics ◽  
Equations Of Motions

This contribution presents the results of a campaign of numerical simulations aimed at better understanding the propagation of longitudinal waves in pantographic beams within the large-deformation regime. Initially, we recall the key features of a Lagrangian discrete spring model, which was introduced in previous works and that was tested extensively as capable of accurately forecasting the mechanical response of structures based on the pantographic motif, both in statics and dynamics. Successively, a stepwise integration scheme used to solve equations of motions is briefly discussed. The key content of the present contribution concerns the thorough presentation of some selected numerical simulations, which focus in particular on the propagation of stretch profiles induced by impulsive loads. The study takes into account different tests, by varying the number of unit cells, i.e., the total length of the system, spring stiffnesses, the shape of the impulse, as well as its properties such as duration and peak amplitude, and boundary conditions. Some conjectures about the form of traveling waves are formulated, to be confirmed by both further numerical simulations and analytical investigations.

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