scholarly journals A numerical study of the effects of cathode geometry on tungsten inert gas type electric arcs

2022 ◽  
Vol 182 ◽  
pp. 121923
Author(s):  
Christopher Nahed ◽  
Stéphane Gounand ◽  
Marc Medale
Keyword(s):  
Numerical Study ◽  
Inert Gas ◽  
Electric Arcs

Numerical study of the effects and transport mechanisms of iron vapour in tungsten inert-gas welding in argon

2019 ◽  
Vol 53 (4) ◽  
pp. 044004 ◽  
Author(s):  
Junting Xiang ◽  
Hunkwan Park ◽  
Keigo Tanaka ◽  
Masaya Shigeta ◽  
Manabu Tanaka ◽  
...  
Keyword(s):  
Numerical Study ◽  
Inert Gas ◽  
Transport Mechanisms ◽  
Tungsten Inert Gas Welding

Numerical Study of Heat and Aerodynamic Processes in Regenerators of an Inert Gas Generator (IGG)

2005 ◽  
Author(s):  
SooYong Kim ◽  
Valeri P. Kovalevski ◽  
V. Goldenberg
Keyword(s):  
Numerical Study ◽  
Aerodynamic Resistance ◽  
Extensive Study ◽  
Inert Gas ◽  
Gas Generator ◽  
Regenerative Heat ◽  
Turbine Engine ◽  
One Dimensional ◽  
Study Results ◽  
Integral Scheme

The cooling scheme for inert gas exhausting from a small gas turbine engine is presented and its performance, including the gas injector and regenerator, are investigated. A distributed, nonlinear mathematical model used to study the processes in regenerative heat exchangers is also described. An integral scheme of a conjugated problem of a non-stationary heat exchange of both one-dimensional streams and a two-dimensional matrix wall are presented. Comparison of test calculations made using the developed program with experimental data of different authors has shown satisfactory agreement. The extensive study results of quasistationary, dynamic heat and aerodynamic processes in regenerators with four types of matrices are introduced: ceramic matrix with straight rectangular cross-sectioned channels and three types of packings — granite full-spheres, Raschig rings and meshes of stainless steel. For each type of matrix, optimum range of rotation speeds ensures the maximum effectiveness while allowing the minimum aerodynamic resistance to be determined.

scholarly journals Numerical study of the metal vapour transport in tungsten inert-gas welding in argon for stainless steel

2020 ◽  
Vol 79 ◽  
pp. 713-728 ◽  
Author(s):  
Junting Xiang ◽  
Fiona F. Chen ◽  
Hunkwan Park ◽  
Keigo Tanaka ◽  
Masaya Shigeta ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Numerical Study ◽  
Inert Gas ◽  
Vapour Transport ◽  
Tungsten Inert Gas Welding ◽  
Metal Vapour

Numerical study on performance of disk MHD generator using frozen inert gas plasma

2002 ◽  
Vol 30 (6) ◽  
pp. 2152-2159 ◽  
Author(s):  
H. Kobayashi ◽  
Y. Satou ◽  
Y. Okuno
Keyword(s):  
Numerical Study ◽  
Inert Gas ◽  
Mhd Generator ◽  
Gas Plasma

Numerical Study of Disperse, Multiphase Microslug Formation at a Microchannel Junction

2010 ◽  
Author(s):  
M. Ryan McDevitt ◽  
Darren L. Hitt ◽  
Justin W. McCabe
Keyword(s):  
Numerical Methods ◽  
Multiphase Flow ◽  
Level Set Method ◽  
Level Set ◽  
Fuel Injection ◽  
Numerical Study ◽  
Inert Gas ◽  
Injection System ◽  
Fuel Injection System ◽  
Liquid Propellant

In this study, we use numerical methods to examine microslug formation via converging flows of a liquid propellant and inert gas at a 4-way 90° microchannel junction. The primary goal of this study is to characterize microslug formation in a microchannel using the level set method to model the multiphase flow. The significance of this work lies in the utilization of the microslug formation phenomena as the basis for a fuel injection system in a novel, discrete monopropellant microthruster design for use in next-generation nano-satellites.

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