Two-temperature chemically-non-equilibrium modeling of argon induction plasmas with diatomic gas

Takayuki Watanabe; Masaya Shigeta; Nobuhiko Atsuchi

doi:10.1016/j.ijheatmasstransfer.2006.05.039

Two-temperature chemically-non-equilibrium modeling of argon induction plasmas with diatomic gas

Takayuki Watanabe, Masaya Shigeta, Nobuhiko Atsuchi

ENG - Mechanical Systems Engineering

Tokyo Institute of Technology

Research output: Contribution to journal › Article › peer-review

24 Citations (Scopus)

Abstract

A non-equilibrium modeling of argon-oxygen and argon-hydrogen induction thermal plasmas was performed without thermal and chemical equilibrium assumptions. Reaction rates of dissociation and recombination of diatomic gas and ionization were taken into account with two-temperature modeling. A substantial deviation from LTE exists near the torch wall in argon-oxygen induction plasmas under atmospheric pressure, while small deviation in argon-hydrogen plasmas results from the large collision frequency between electrons and hydrogen atoms.

Original language	English
Pages (from-to)	4867-4876
Number of pages	10
Journal	International Journal of Heat and Mass Transfer
Volume	49
Issue number	25-26
DOIs	https://doi.org/10.1016/j.ijheatmasstransfer.2006.05.039
Publication status	Published - 2006 Dec

Keywords

Argon-Hydrogen
Argon-Oxygen
Induction thermal plasma
Non-equilibrium
Numerical modeling
Two-temperature

Access to Document

10.1016/j.ijheatmasstransfer.2006.05.039

Cite this

@article{588134f1b56645f08dff2feb98803055,

title = "Two-temperature chemically-non-equilibrium modeling of argon induction plasmas with diatomic gas",

abstract = "A non-equilibrium modeling of argon-oxygen and argon-hydrogen induction thermal plasmas was performed without thermal and chemical equilibrium assumptions. Reaction rates of dissociation and recombination of diatomic gas and ionization were taken into account with two-temperature modeling. A substantial deviation from LTE exists near the torch wall in argon-oxygen induction plasmas under atmospheric pressure, while small deviation in argon-hydrogen plasmas results from the large collision frequency between electrons and hydrogen atoms.",

keywords = "Argon-Hydrogen, Argon-Oxygen, Induction thermal plasma, Non-equilibrium, Numerical modeling, Two-temperature",

author = "Takayuki Watanabe and Masaya Shigeta and Nobuhiko Atsuchi",

note = "Funding Information: This research was supported by the Ministry of Education, Science, Sports and Culture, Grant-in-Aid for Scientific Research (B).",

year = "2006",

month = dec,

doi = "10.1016/j.ijheatmasstransfer.2006.05.039",

language = "English",

volume = "49",

pages = "4867--4876",

journal = "International Journal of Heat and Mass Transfer",

issn = "0017-9310",

publisher = "Elsevier Ltd.",

number = "25-26",

}

TY - JOUR

T1 - Two-temperature chemically-non-equilibrium modeling of argon induction plasmas with diatomic gas

AU - Watanabe, Takayuki

AU - Shigeta, Masaya

AU - Atsuchi, Nobuhiko

N1 - Funding Information: This research was supported by the Ministry of Education, Science, Sports and Culture, Grant-in-Aid for Scientific Research (B).

PY - 2006/12

Y1 - 2006/12

N2 - A non-equilibrium modeling of argon-oxygen and argon-hydrogen induction thermal plasmas was performed without thermal and chemical equilibrium assumptions. Reaction rates of dissociation and recombination of diatomic gas and ionization were taken into account with two-temperature modeling. A substantial deviation from LTE exists near the torch wall in argon-oxygen induction plasmas under atmospheric pressure, while small deviation in argon-hydrogen plasmas results from the large collision frequency between electrons and hydrogen atoms.

AB - A non-equilibrium modeling of argon-oxygen and argon-hydrogen induction thermal plasmas was performed without thermal and chemical equilibrium assumptions. Reaction rates of dissociation and recombination of diatomic gas and ionization were taken into account with two-temperature modeling. A substantial deviation from LTE exists near the torch wall in argon-oxygen induction plasmas under atmospheric pressure, while small deviation in argon-hydrogen plasmas results from the large collision frequency between electrons and hydrogen atoms.

KW - Argon-Hydrogen

KW - Argon-Oxygen

KW - Induction thermal plasma

KW - Non-equilibrium

KW - Numerical modeling

KW - Two-temperature

UR - http://www.scopus.com/inward/record.url?scp=33750399507&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33750399507&partnerID=8YFLogxK

U2 - 10.1016/j.ijheatmasstransfer.2006.05.039

DO - 10.1016/j.ijheatmasstransfer.2006.05.039

M3 - Article

AN - SCOPUS:33750399507

SN - 0017-9310

VL - 49

SP - 4867

EP - 4876

JO - International Journal of Heat and Mass Transfer

JF - International Journal of Heat and Mass Transfer

IS - 25-26

ER -

Two-temperature chemically-non-equilibrium modeling of argon induction plasmas with diatomic gas

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this