Flat-Probe Diagnostic Methods for Collisional Plasma Flowing from Technological Plasmatrons

Kotelnikov, V. A.; Kotel’nikov, M. V.; Филиппов, Г. С.

doi:10.3103/s1052618820010082

Cited by 1 publication

(2 citation statements)

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“…[4][5] The block structure and the number of grid elements along each of block sides to calculate the jet without a diffuser is shown in We calculated the flow in ANSYS CFX by control volume analysis using the compressible ideal gas model, enthalpy complete equation to calculate thermal transfer concerning variable density, and k-ε turbulence model. [6][7][8] Given the jet inlet temperature equal to 10 700 К, the air velocity at inlet being 770 m/s, is lower than the sound speed (Mach number 0,3-0,4), that is why we chose the subsonic condition of jet inlet ( Figure Figure 10). [7] The area around the jet is considered as an adiabatic wall.…”

Section: Methodsmentioning

confidence: 99%

“…[6][7][8] Given the jet inlet temperature equal to 10 700 К, the air velocity at inlet being 770 m/s, is lower than the sound speed (Mach number 0,3-0,4), that is why we chose the subsonic condition of jet inlet ( Figure Figure 10). [7] The area around the jet is considered as an adiabatic wall. We define other borders by ambient pressure equal to 1 atm and 20 °С.…”

Section: Methodsmentioning

confidence: 99%

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Numerical Simulation of Plasma Spraying Performance Index

Frolov

Klochkov

2020

E3S Web Conf.

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In recent years, there has been an increasing interest in plasma jet numerical simulation. Speed and temperature propagation in axial and radial direction in plasma jet significantly influences on speed and temperature of sprayed material and therefore on coating quality. However, there are few studies concerning plasma jet numerical simulation in modern software systems and they describe a specific problem. It is a wellknown fact that using simple structural components such as plasmatron heads for plasma thermal spraying allows us to increase the quality of zirconium oxide coatings by increasing the speed of spraying particles and decreasing their spread value and allows to increase economic efficiency of the process by increasing the operation factor of spraying material. However, scientists have not studied well the influence of the plasmatron head, which looks like a cone element, and the simulation of a high temperature flow along the channel is not mentioned in publications. Therefore, it is necessary to research the flow of a high temperature current along the channel of the head.

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