Numerical modelling of propane combustion in a high velocity oxygen-fuel thermal spray gun

S. Kamnis, S. Gu*

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

High velocity oxygen-fuel (HVOF) thermal spraying is a relatively new technology compared to other protective coating methods. Powders sprayed by liquid fuel HVOF guns are able to achieve high impact velocities without overheating, which results in superior coatings. A computational fluid dynamic (CFD) model is developed to investigate propane combustion in the process of HVOF thermal spraying. The numerical methods are described for correct representation of various thermal-physical phenomena such as flame propagation, turbulent mixing and flow acceleration. The principal advantages and shortcomings of various models are discussed.

Original languageEnglish
Pages (from-to)246-253
Number of pages8
JournalChemical Engineering and Processing
Volume45
Issue number4
DOIs
Publication statusPublished - 1 Apr 2006

Fingerprint

HVOF thermal spraying
Spray guns
Propane
Oxygen
Liquid fuels
Protective coatings
Powders
Dynamic models
Numerical methods
Computational fluid dynamics
Coatings
Hot Temperature

Keywords

  • CFD
  • Combustion
  • Gas dynamics
  • HVOF

Cite this

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title = "Numerical modelling of propane combustion in a high velocity oxygen-fuel thermal spray gun",
abstract = "High velocity oxygen-fuel (HVOF) thermal spraying is a relatively new technology compared to other protective coating methods. Powders sprayed by liquid fuel HVOF guns are able to achieve high impact velocities without overheating, which results in superior coatings. A computational fluid dynamic (CFD) model is developed to investigate propane combustion in the process of HVOF thermal spraying. The numerical methods are described for correct representation of various thermal-physical phenomena such as flame propagation, turbulent mixing and flow acceleration. The principal advantages and shortcomings of various models are discussed.",
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Numerical modelling of propane combustion in a high velocity oxygen-fuel thermal spray gun. / Kamnis, S.; Gu, S.

In: Chemical Engineering and Processing, Vol. 45, No. 4, 01.04.2006, p. 246-253.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Numerical modelling of propane combustion in a high velocity oxygen-fuel thermal spray gun

AU - Kamnis, S.

AU - Gu, S.

PY - 2006/4/1

Y1 - 2006/4/1

N2 - High velocity oxygen-fuel (HVOF) thermal spraying is a relatively new technology compared to other protective coating methods. Powders sprayed by liquid fuel HVOF guns are able to achieve high impact velocities without overheating, which results in superior coatings. A computational fluid dynamic (CFD) model is developed to investigate propane combustion in the process of HVOF thermal spraying. The numerical methods are described for correct representation of various thermal-physical phenomena such as flame propagation, turbulent mixing and flow acceleration. The principal advantages and shortcomings of various models are discussed.

AB - High velocity oxygen-fuel (HVOF) thermal spraying is a relatively new technology compared to other protective coating methods. Powders sprayed by liquid fuel HVOF guns are able to achieve high impact velocities without overheating, which results in superior coatings. A computational fluid dynamic (CFD) model is developed to investigate propane combustion in the process of HVOF thermal spraying. The numerical methods are described for correct representation of various thermal-physical phenomena such as flame propagation, turbulent mixing and flow acceleration. The principal advantages and shortcomings of various models are discussed.

KW - CFD

KW - Combustion

KW - Gas dynamics

KW - HVOF

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