Numerical simulation of alumina spraying in argon-helium plasma jet

Conference · Wed Jan 01 00:00:00 EST 1992

OSTI ID:7238057

Chang, C H

A new numerical model is described for simulating thermal plasmas containing entrained particles, with emphasis on plasma spraying applications. The plasma is represented as a continuum multicomponent chemically reacting ideal gas, while the particles are tracked as discrete Lagrangian entities coupled to the plasma. Computational results are presented from a transient simulation of alumina spraying in a turbulent argon-helium plasma jet in air environment, including torch geometry, substrate, and multiple species with chemical reactions. Particle-plasma interactions including turbulent dispersion have been modeled in a fully self-consistent manner. Interactions between the plasma and the torch and substrate walls are modeled using wall functions. (15 refs.)

• Research Organization: EG and G Idaho, Inc., Idaho Falls, ID (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC07-76ID01570
• OSTI ID: 7238057
• Report Number(s): EGG-M-91307; CONF-9206135-3; ON: DE92017859
• Resource Relation: Conference: 1992 international thermal spray conference, Orlando, FL (United States), 1-5 Jun 1992
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
ALUMINIUM OXIDES
PLASMA ARC SPRAYING
MATHEMATICAL MODELS
ARGON
COMPUTERIZED SIMULATION
CONCENTRATION RATIO
HELIUM
JETS
PARTICLES
PLASMA
ALUMINIUM COMPOUNDS
CHALCOGENIDES
DEPOSITION
ELEMENTS
FLUIDS
GASES
NONMETALS
OXIDES
OXYGEN COMPOUNDS
RARE GASES
SIMULATION
SPRAY COATING
SURFACE COATING
360201* - Ceramics
Cermets
& Refractories- Preparation & Fabrication
990200 - Mathematics & Computers