Computational modeling of the HVOF process

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Precise control of the high velocity oxygen-fuel spray (HVOF) process parameters is important to obtain high-performance coatings. The coating particle in-flight state is commonly monitored by measuring the in-flight temperature and velocity. To complement the available measurement techniques, a computational model for the gas flow and coating powder in flight, for propylene fueled HVOF process was built. The model is compared to measured nozzle exit pressure and position of the first shock diamond, together with measured particle velocities and surface temperatures. At first the gas flow is solved in absence of the coating powder, assuming a negligible powder mass flow, using the computational fluid dynamics (CFD) program “OpenFOAM”. Subsequently, the coating powder acceleration and heating is modeled in this gas flow.
Original languageEnglish
Pages (from-to)52-58
Number of pages7
JournalThermal Spray Bulletin
Volume66
Issue number1
Publication statusPublished - 2014
MoE publication typeA1 Journal article-refereed

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Powder coatings
Flow of gases
Oxygen
Coatings
Propylene
Diamonds
Nozzles
Computational fluid dynamics
Heating
Powders
Temperature

Cite this

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title = "Computational modeling of the HVOF process",
abstract = "Precise control of the high velocity oxygen-fuel spray (HVOF) process parameters is important to obtain high-performance coatings. The coating particle in-flight state is commonly monitored by measuring the in-flight temperature and velocity. To complement the available measurement techniques, a computational model for the gas flow and coating powder in flight, for propylene fueled HVOF process was built. The model is compared to measured nozzle exit pressure and position of the first shock diamond, together with measured particle velocities and surface temperatures. At first the gas flow is solved in absence of the coating powder, assuming a negligible powder mass flow, using the computational fluid dynamics (CFD) program “OpenFOAM”. Subsequently, the coating powder acceleration and heating is modeled in this gas flow.",
author = "Tatu Pinomaa and Tomi Suhonen and Tommi Varis",
year = "2014",
language = "English",
volume = "66",
pages = "52--58",
journal = "Thermal Spray Bulletin",
issn = "1866-6248",
number = "1",

}

Computational modeling of the HVOF process. / Pinomaa, Tatu; Suhonen, Tomi; Varis, Tommi.

In: Thermal Spray Bulletin, Vol. 66, No. 1, 2014, p. 52-58.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Computational modeling of the HVOF process

AU - Pinomaa, Tatu

AU - Suhonen, Tomi

AU - Varis, Tommi

PY - 2014

Y1 - 2014

N2 - Precise control of the high velocity oxygen-fuel spray (HVOF) process parameters is important to obtain high-performance coatings. The coating particle in-flight state is commonly monitored by measuring the in-flight temperature and velocity. To complement the available measurement techniques, a computational model for the gas flow and coating powder in flight, for propylene fueled HVOF process was built. The model is compared to measured nozzle exit pressure and position of the first shock diamond, together with measured particle velocities and surface temperatures. At first the gas flow is solved in absence of the coating powder, assuming a negligible powder mass flow, using the computational fluid dynamics (CFD) program “OpenFOAM”. Subsequently, the coating powder acceleration and heating is modeled in this gas flow.

AB - Precise control of the high velocity oxygen-fuel spray (HVOF) process parameters is important to obtain high-performance coatings. The coating particle in-flight state is commonly monitored by measuring the in-flight temperature and velocity. To complement the available measurement techniques, a computational model for the gas flow and coating powder in flight, for propylene fueled HVOF process was built. The model is compared to measured nozzle exit pressure and position of the first shock diamond, together with measured particle velocities and surface temperatures. At first the gas flow is solved in absence of the coating powder, assuming a negligible powder mass flow, using the computational fluid dynamics (CFD) program “OpenFOAM”. Subsequently, the coating powder acceleration and heating is modeled in this gas flow.

M3 - Article

VL - 66

SP - 52

EP - 58

JO - Thermal Spray Bulletin

JF - Thermal Spray Bulletin

SN - 1866-6248

IS - 1

ER -