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

    Fingerprint

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

    Cite this

    @article{736b66d9263a4483acc39286f050874b,
    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 -