Detail publikace

Parametric study of hybrid argon-water stabilized arc under subsonic and supersonic regimes

JENIŠTA, J. TAKANA, H. NYSHIYAMA, H. BARTLOVÁ, M. AUBRECHT, V. HRABOVSKÝ, M.

Originální název

Parametric study of hybrid argon-water stabilized arc under subsonic and supersonic regimes

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Numerical investigation of characteristics and processes in the worldwide unique type of thermal plasma generator with combined stabilization of arc by argon flow and water vortex, the so-called hybrid arc, has been carried out. The aim of this paper is a numerical study of characteristics and processes in the hybrid arc under both subsonic plasma flow regime and transonic and supersonic flow regimes at high currents and argon mass flow rates at atmospheric pressure. The partial characteristics method for radiation loss from the arc is employed. Results carried out for 300-600 A and for argon mass flow rates of 22.5-32.5 slm (standard litre per minute) proved that structure of plasma flow and temperature field can be subsonic or supersonic depending on the operating conditions: a transonic flow occurs for currents 400-500 A, a supersonic one appears for 600 A in the central regions of the discharge.

Klíčová slova

argon mass flow rate, divergence of radiation flux, partial characteristics, reabsorption, shock diamonds, water plasma torch

Autoři

JENIŠTA, J.; TAKANA, H.; NYSHIYAMA, H.; BARTLOVÁ, M.; AUBRECHT, V.; HRABOVSKÝ, M.

Rok RIV

2009

Vydáno

15. 6. 2010

ISSN

1093-3611

Periodikum

High Temperature Material Processes: An International Journal

Ročník

14

Číslo

1

Stát

Spojené státy americké

Strany od

63

Strany do

76

Strany počet

14

BibTex

@article{BUT47339,
  author="Jiří {Jeništa} and H. {Takana} and H. {Nyshiyama} and Milada {Bartlová} and Vladimír {Aubrecht} and Milan {Hrabovský}",
  title="Parametric study of hybrid argon-water stabilized arc under subsonic and supersonic regimes",
  journal="High Temperature Material Processes: An International Journal",
  year="2010",
  volume="14",
  number="1",
  pages="63--76",
  issn="1093-3611"
}