Numerical calculations of a high power CW CO2 gas-dynamic laser

2008 ◽  
Author(s):  
Sharif Al-Hawat ◽  
Kheir Al-Mutaib
Keyword(s):  
High Power ◽  
Numerical Calculations ◽  
Gas Dynamic

Heat treatment of large-scale rolling machine rolls by high-power gas dynamic laser at Cherepovetz Metallurgy Works

1997 ◽  
Author(s):  
Alexei A. Betev ◽  
Vyatcheslav T. Karpukhin ◽  
Yuri B. Konev ◽  
B. M. Kozlov ◽  
Leonid I. Danilov ◽  
...  
Keyword(s):  
Heat Treatment ◽  
High Power ◽  
Large Scale ◽  
Gas Dynamic

Static-Stiffness Analysis of a Roll-Bending Machine of High-Power

2013 ◽  
Vol 581 ◽  
pp. 125-130
Author(s):  
Attila Szilágyi ◽  
György Takács ◽  
Balázs Barna
Keyword(s):  
High Power ◽  
Numerical Calculations ◽  
Project Work ◽  
Static Stiffness ◽  
Stiffness Analysis ◽  
Roll Bending

This article is a brief summary of an R&D project work that includes the improvement of a roll-bending machine with high power. The emphasis was laid on achieving an increased static stiffness of the equipment. In the followings the numerical calculations and the simulations are presented.

scholarly journals Numerical simulation of the effective input of laser energy into a cavity through a hole

1999 ◽  
Vol 17 (4) ◽  
pp. 785-791
Author(s):  
I.G. LEBO ◽  
S.YU. GUS'KOV ◽  
V.V. DEMCHENKO ◽  
V.V. NIKISHIN ◽  
V.F. TISHKIN ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Laser Pulse ◽  
Laser Beam ◽  
High Power ◽  
Laser Energy ◽  
Numerical Calculations ◽  
High Power Laser ◽  
Power Laser ◽  
High Power Laser Pulse

A possibility of input of high-power laser pulse into a cavity through a hole was studied by means of 2D numerical calculations. Such tasks appear in view of investigation of the effective targets with internal input of energy (Bessarab et al. 1992; Basov et al. 1998), “cannon-ball” (Hogan 1989), “Greenhouse” targets (Gus'kov et al. 1995).We have used two Euler codes “NUTCY” and “FAKEL” to model the problems of laser beam input into a cavity through the holes.

scholarly journals Review on High Power Gas Dynamic CO2 Laser.

1993 ◽  
Vol 21 (4) ◽  
pp. 485-495 ◽  
Author(s):  
Hideaki SAITO ◽  
Takaaki MURATA
Keyword(s):  
Co2 Laser ◽  
High Power ◽  
Gas Dynamic

Plasma sheath around a floating cylindrical antenna at high power

1970 ◽  
Vol 48 (16) ◽  
pp. 1882-1893 ◽  
Author(s):  
J. Rubinstein ◽  
J. G. Laframboise
Keyword(s):  
Radiation Field ◽  
High Power ◽  
Coulomb Potential ◽  
Plasma Sheath ◽  
Numerical Calculations ◽  
High Frequencies ◽  
Cylindrical Antenna ◽  
Self Consistent ◽  
Antenna Impedance

At high frequencies the time-averaged effect of the radiation field near an antenna is to add the term a2E2(r) to the Coulomb potential. Its inclusion in a self-consistent Poisson–Vlasov analysis shows that a high power antenna may acquire a strong positive floating potential.Electron, ion, and potential profiles are obtained from numerical calculations and the effect on antenna impedance is discussed. Time taken to acquire positive potentials is estimated.

Mobile high-power gas-dynamic CO2 laser installation for technological applications

1997 ◽  
Author(s):  
Vyatcheslav T. Karpukhin ◽  
Yuri B. Konev ◽  
Anatoly Sidorenko
Keyword(s):  
High Power ◽  
Gas Dynamic ◽  
Laser Installation

scholarly journals MODELING AND ANALYSIS OF NONSTATIONARY GAS FILTRATION UNDER GAS DYNAMIC PARAMETERS VARIATION

2021 ◽  
Keyword(s):  
Porous Medium ◽  
Oil And Gas ◽  
Initial Conditions ◽  
Numerical Calculations ◽  
Mathematical Tool ◽  
Dynamic Parameters ◽  
Gas Filtration ◽  
Modeling And Analysis ◽  
Gas Recovery ◽  
Gas Dynamic

A mathematical model that describes a partial differential equation with boundary, internal and initial conditions was developed in the article, to study the gas-dynamic parameters of the gas filtration process in a porous medium under isothermal conditions. The study was performed based on the reviews of research works related to mathematical modeling in recent years. Computational experiments (CE) were conducted on a computer to determine the response of the main parameters on the process of gas filtration in a porous medium on the basis of the developed mathematical tool (model, numerical algorithm, and software). The results of numerical calculations were presented in the form of tables and graphical objects for the purpose of developing oil and gas fields and increasing oil and gas recovery. With the analysis of the numerical calculations performed, it was established that when the parameters and properties of gas filtration are considered as functions of pressure, then the process of gas filtration in porous media can be adequately described, as a whole, and it correctly reflects the main point of the object under research. It could be concluded that with the mathematical tool developed, it became possible to conduct a comprehensive study of the process of gas filtration in a porous medium.

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