Plasma parameters and time-dependent variations of hydrogen level populations in a high-frequency discharge

1971 ◽  
Vol 14 (2) ◽  
pp. 145-147
Author(s):  
A. V. Berdyshev ◽  
Yu. V. Golubev ◽  
V. M. Gol'dfarb
Keyword(s):  
High Frequency ◽  
Time Dependent ◽  
Plasma Parameters ◽  
High Frequency Discharge ◽  
Hydrogen Level

High-Frequency Discharge as an Ion Source

Nature ◽  
1946 ◽  
Vol 158 (4002) ◽  
pp. 61-61 ◽  
Author(s):  
P. C. THONEMANN
Keyword(s):  
High Frequency ◽  
Ion Source ◽  
High Frequency Discharge

A One Dimensional, Time Dependent Inlet / Engine Numerical Simulation for Aircraft Propulsion Systems

1997 ◽  
Author(s):  
Doug Garrard ◽  
Milt Davis ◽  
Steve Wehofer ◽  
Gary Cole
Keyword(s):  
Numerical Simulation ◽  
Gas Turbine ◽  
High Frequency ◽  
Gas Turbine Engine ◽  
Simulation System ◽  
Time Dependent ◽  
Propulsion Systems ◽  
Turbine Engine ◽  
One Dimensional ◽  
Supersonic Inlet

The NASA Lewis Research Center (LeRC) and the Arnold Engineering Development Center (AEDC) have developed a closely coupled computer simulation system that provides a one dimensional, high frequency inlet / engine numerical simulation for aircraft propulsion systems. The simulation system, operating under the LeRC-developed Application Portable Parallel Library (APPL), closely coupled a supersonic inlet with a gas turbine engine. The supersonic inlet was modeled using the Large Perturbation Inlet (LAPIN) computer code, and the gas turbine engine was modeled using the Aerodynamic Turbine Engine Code (ATEC). Both LAPIN and ATEC provide a one dimensional, compressible, time dependent flow solution by solving the one dimensional Euler equations for the conservation of mass, momentum, and energy. Source terms are used to model features such as bleed flows, turbomachinery component characteristics, and inlet subsonic spillage while unstarted. High frequency events, such as compressor surge and inlet unstart, can be simulated with a high degree of fidelity. The simulation system was exercised using a supersonic inlet with sixty percent of the supersonic area contraction occurring internally, and a GE J85-13 turbojet engine.

scholarly journals Erratum to: “Influence of external conditions on physical processes and plasma parameters in a model of a high-frequency hybrid plasma system”

2017 ◽  
Vol 46 (4) ◽  
pp. 299-299
Author(s):  
A. F. Aleksandrov ◽  
A. K. Petrov ◽  
K. V. Vavilin ◽  
E. A. Kral’kina ◽  
P. A. Neklyudova ◽  
...  
Keyword(s):  
High Frequency ◽  
Physical Processes ◽  
Plasma Parameters ◽  
Plasma System ◽  
Hybrid Plasma ◽  
External Conditions

Rotational Analysis of the lΠ–XlΣ+ System of C80Se

1974 ◽  
Vol 52 (9) ◽  
pp. 813-820 ◽  
Author(s):  
René Stringat ◽  
Jean-Paul Bacci ◽  
Marie-Hélène Pischedda
Keyword(s):  
Emission Spectrum ◽  
Ground State ◽  
High Frequency ◽  
Rotational Analysis ◽  
Molecular Constants ◽  
High Frequency Discharge ◽  
Perturbed State ◽  
Simple Evaluation ◽  
Π State

The strongly perturbed 1Π–X1Σ+ system of C80Se has been observed in the emission spectrum of a high frequency discharge through selenium and carbon traces in a neon atmosphere. The analysis of five bands yields, for the molecular constants of the ground state, the values Be″ = 0.5750 cm−1, [Formula: see text], αe″ = 0.00379 cm−1, re″ = 1.676 Å, ΔG″(1/2) = 1025.64 cm−1, and ΔG″(3/2) = 1015.92 cm−1. The numerous perturbations in the 1Π state prohibit the simple evaluation of the constants of the perturbed state and of the perturbing ones.

A New Direct Measurement Method of Time Dependent Dielectric Breakdown at High Frequency

2020 ◽  
Vol 41 (10) ◽  
pp. 1460-1463
Author(s):  
Melissa Arabi ◽  
Xavier Garros ◽  
Jacques Cluzel ◽  
Mustapha Rafik ◽  
Xavier Federspiel ◽  
...  
Keyword(s):  
Direct Measurement ◽  
High Frequency ◽  
Measurement Method ◽  
Dielectric Breakdown ◽  
Time Dependent ◽  
Time Dependent Dielectric Breakdown ◽  
Direct Measurement Method
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