Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Nonequilibrium Phenomena in (Quasi-)thermal Plasma Flows

Journal Article · · Plasma Chemistry and Plasma Processing
 [1]
  1. Univ. of Massachusetts, Lowell, MA (United States); University of Massachusetts Lowell, Department of Mechanical Engineering
Thermal plasmas are utilized in diverse applications that require high power densities or throughputs, such as metal cutting, welding, spraying, metallurgy, and materials synthesis. Thermal plasma applications involve interactions between the highly energetic plasma and working gas streams, confining devices, or processing materials. Whereas thermal plasma implies a state of equilibrium (i.e. Local Thermodynamic Equilibrium, LTE), due to the above interactions, thermal plasma flows depict nonequilibrium phenomena of two types: kinetic and dissipative. Kinetic nonequilibrium manifests microscopically and is caused by localized imbalances between particles and fields interactions. Its occurrence is illustrated, for example, as deviations from thermal equilibrium between heavy-species and electrons or from mass-action laws. In contrast, dissipative nonequilibrium reveals macroscopically and is produced by external driving forces that incite distributed responses, such as the growth of instabilities, the occurrence of self-organization, or the establishment of turbulence. While kinetic nonequilibrium has been increasingly incorporated in thermal plasma flow models (e.g. finite-rate chemistry, two-temperature models), it is the great advances in numerical computing that is enabling the exploration of dissipative nonequilibrium (e.g. pattern formation, small-scale turbulent features). Both types of nonequilibrium are reviewed, including their estimation and incidence, within the context of computational models and their relevance to thermal plasma sources and processes.
Research Organization:
Univ. of Massachusetts, Lowell, MA (United States)
Sponsoring Organization:
National Science Foundation (NSF); USDOE Office of Science (SC), Fusion Energy Sciences (FES) (SC-24)
Grant/Contract Number:
SC0018230
OSTI ID:
1623351
Journal Information:
Plasma Chemistry and Plasma Processing, Journal Name: Plasma Chemistry and Plasma Processing Journal Issue: 3 Vol. 40; ISSN 0272-4324
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English

References (89)

Plasma-driven dissociation of CO 2 for fuel synthesis journal September 2016
Modeling of Thermal Plasma Processes: The Importance of Two-Way Plasma-Surface Interactions: Modeling of Thermal Plasma Processes… journal November 2016
Design and characterization of an electromagnetic-resonant cavity microwave plasma reactor for atmospheric pressure carbon dioxide decomposition journal November 2018
Thermal Plasmas book January 1994
Two-temperature modeling of an arc plasma reactor journal September 1981
Argon plasma transport properties at reduced pressures journal June 1990
Modeling of an inductively coupled plasma at reduced pressures journal March 1990
Ambipolar diffusion in two-temperature multicomponent plasmas journal September 1993
Two-Temperature Two-Dimensional Non Chemical Equilibrium Modeling of Ar–CO2–H2 Induction Thermal Plasmas at Atmospheric Pressure journal November 2009
Advances in Plasma Arc Cutting Technology: The Experimental Part of an Integrated Approach journal December 2011
Perspectives on Thermal Plasma Modelling journal October 2014
A Perspective on Plasma Spray Technology journal December 2014
Thermodynamic and Transport Properties of Nitrogen Plasma Under Thermal Equilibrium and Non-equilibrium Conditions journal February 2015
Thermal Plasma Sources: How Well are They Adopted to Process Needs? journal February 2015
Thermal and Chemical Nonequilibrium Effects in Free-Burning Arcs journal September 2015
Effect of Metal Vapours on the Radiation Properties of Thermal Plasmas journal November 2016
A Survey of Chemical Nonequilibrium in Argon Arc Plasma journal December 2016
Non-equilibrium Modeling of Tungsten-Inert Gas Arcs journal January 2017
Parametric Study of Plasma Torch Operation Using a MHD Model Coupling the Arc and Electrodes journal October 2015
Non-transferred Arc Torch Simulation by a Non-equilibrium Plasma Laminar-to-Turbulent Flow Model journal October 2018
Numerical study on thermal non-equilibrium of arc plasmas in TIG welding processes using a two-temperature model journal October 2016
Plasma jet behavior and modeling associated with the plasma spray process journal February 1994
Two-temperature chemically-non-equilibrium modeling of argon induction plasmas with diatomic gas journal December 2006
An adaptive line-by-line—statistical model for fast and accurate spectral simulations in low-pressure plasmas journal November 2007
Spatial and angular finite element method for radiative transfer in participating media journal May 2015
Solar–gliding arc plasma reactor for carbon dioxide decomposition: Design and characterization journal March 2019
Plasma Chemistry book January 2008
Hydrodynamic Stability book January 2004
Principles of Magnetohydrodynamics: With Applications to Laboratory and Astrophysical Plasmas book February 2010
Pattern Formation and Dynamics in Nonequilibrium Systems book January 2009
Disintegration of Carbon Dioxide Molecules in a Microwave Plasma Torch journal December 2015
70 years of Landau–Teller theory for collisional energy transfer. Semiclassical three-dimensional generalizations of the classical collinear model journal January 2008
Two‐temperature modeling of the free‐burning, high‐intensity arc journal August 1983
A two‐temperature model of the inductively coupled rf plasma journal March 1987
Effect of frequency on local thermodynamic equilibrium conditions in an inductively coupled argon plasma at atmospheric pressure journal September 1990
A numerical model of non-equilibrium thermal plasmas. I. Transport properties journal March 2013
A numerical model of non-equilibrium thermal plasmas. II. Governing equations journal March 2013
Basic knowledge on radiative and transport properties to begin in thermal plasmas modelling journal May 2015
A two‐dimensional nonequilibrium model of cascaded arc plasma flows journal September 1991
Fluctuations in Nonequilibrium Systems journal September 1971
Two-temperature, two-dimensional fluid modelling of mercury plasma in high-pressure lamps journal September 1996
Non-equilibrium modelling of transferred arcs journal January 1999
Thermal plasmas in gas mixtures journal October 2001
Two-temperature chemically non-equilibrium modelling of high-power Ar–N 2 inductively coupled plasmas at atmospheric pressure journal March 2004
Non-thermal atmospheric pressure discharges journal January 2005
Time-dependent two-temperature chemically non-equilibrium modelling of high-power Ar–N 2 pulse-modulated inductively coupled plasmas at atmospheric pressure journal January 2006
Non-equilibrium modelling of arc plasma torches journal September 2007
Treatment of non-equilibrium phenomena in thermal plasma flows journal August 2008
Modelling of thermal plasmas for arc welding: the role of the shielding gas properties and of metal vapour journal September 2009
Analysing bifurcations encountered in numerical modelling of current transfer to cathodes of dc glow and arc discharges journal September 2009
Two-temperature thermodynamic and transport properties of argon–hydrogen and nitrogen–hydrogen plasmas journal February 2009
The anode region of electric arcs: a survey journal December 2009
3D static and time-dependent modelling of a dc transferred arc twin torch system journal April 2011
Energy equation formulations for two-temperature modelling of ‘thermal’ plasmas journal October 2012
Two-temperature modelling and optical emission spectroscopy of a constant current plasma arc welding process journal May 2013
Computational study of flow dynamics from a dc arc plasma jet journal June 2013
Two-temperature thermodynamic and transport properties of SF 6 –Cu plasmas journal September 2015
Novel non-equilibrium modelling of a DC electric arc in argon journal May 2016
Pattern formation and self-organization in plasmas interacting with surfaces journal September 2016
Turbulence modelling of thermal plasma flows journal November 2016
Computational non-chemically equilibrium model on the current zero simulation in a model N 2 circuit breaker under the free recovery condition journal December 2015
Design and electrical charaterization of a low current–high voltage compact arc plasma torch journal December 2006
Anode attachment modes and their formation in a high intensity argon arc journal June 2007
Formation of self-organized anode patterns in arc discharge simulations journal March 2013
Electrode patterns in arc discharge simulations: effect of anode cooling journal September 2014
Multiple solutions in the theory of dc glow discharges and cathodic part of arc discharges. Application of these solutions to the modeling of cathode spots and patterns: a review journal September 2014
Unsteady state analysis of free-burning arcs in a 3-Phase AC plasma torch: comparison between parallel and coplanar electrode configurations journal August 2014
Comparison of the transport properties of two-temperature argon plasmas calculated using different methods journal May 2015
A collisional-radiative model of iron vapour in a thermal arc plasma journal May 2017
Characterization of the arc in crossflow using a two-temperature nonequilibrium plasma flow model journal October 2018
2D self-consistent modeling of arc–electrode interaction in GTAW using a finite volume method journal November 2018
Investigation on chemically non-equilibrium arc behaviors of different gas media during arc decay phase in a model circuit breaker journal December 2018
Plasma for electrification of chemical industry: a case study on CO 2 reduction journal October 2017
CO 2 conversion by plasma technology: insights from modeling the plasma chemistry and plasma reactor design journal May 2017
Foundations of atmospheric pressure non-equilibrium plasmas journal November 2017
Foundations of High-Pressure Thermal Plasmas journal June 2018
Advances and challenges in computational fluid dynamics of atmospheric pressure plasmas journal September 2018
3D numerical investigation of a free-burning argon arc with metal electrodes using a novel sheath coupling procedure journal November 2019
Demixing in free-burning arcs journal June 1997
Transport properties in a two-temperature plasma: Theory and application journal July 2001
Investigation of Thermal Nonequilibrium in a Plasma Arc Welding Process: Modeling and Diagnostics journal May 2014
Numerical Study of Plasma–Electrode Interaction During Arc Discharge in a DC Plasma Torch journal February 2018
Effects of the Driving Frequency on Temperature in a Multiphase AC Arc journal January 2019
Time, Structure, and Fluctuations journal September 1978
Arc Instabilities in a Plasma Spray Torch journal March 2002
Two-Temperature Model for the Simulation of Atmospheric-Pressure Helium ICPs journal October 1995
2-D and 3-d Fluidynamic and Plasma Characterization of dc Transferred arc Plasma Torches for Metal Cutting journal January 2006
Study of electric arc behavior with superimposed flow. journal April 1967
Numerical Study of Axial Magnetic Effects on a Turbulent Thermal Plasma Jet for Nanopowder Production Using 3D Time-Dependent Simulation journal January 2018

Cited By (1)

Simulating Turbulent Thermal Plasma Flows for Nanopowder Fabrication journal January 2020

Similar Records

Nonequilibrium Phenomena in Plasmas in Contact with Liquids
Technical Report · Sat Jan 13 23:00:00 EST 2024 · OSTI ID:2281172

Characterization of the arc in crossflow using a two-temperature nonequilibrium plasma flow model
Journal Article · Thu Oct 25 20:00:00 EDT 2018 · Journal of Physics. D, Applied Physics · OSTI ID:1623378

Effects of nonequilibrium phenomena on radar transmission - nonequilibrium ionization. Technical report
Technical Report · Mon May 01 00:00:00 EDT 1978 · OSTI ID:6386214