An advanced CFD model to study the effect of non-condensable gas on cavitation in positive displacement pumps

Iannetti, Aldo and Stickland, Matthew T. and Dempster, William M. (2015) An advanced CFD model to study the effect of non-condensable gas on cavitation in positive displacement pumps. Open Engineering, 5 (1). pp. 323-331. ISSN 2391-5439

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    Abstract

    An advanced transient CFD model of a positive displacement reciprocating pump was created to study its behavior and performance in cavitating condition during the inlet stroke. The "full" cavitation model developed by Singhal et al. was utilized, and a sensitivity analysis test on two air mass fraction amounts (1.5 and 15 parts per million) was carried out to study the influence of the dissolved air content in water on the cavitation phenomenon. The model was equipped with user defined functions to introduce the liquid compressibility, which stabilizes the simulation, and to handle the two-way coupling between the pressure field and the inlet valve lift history. Estimation of the performance is also presented in both cases.

    Creators(s): Iannetti, Aldo, Stickland, Matthew T. ORCID logoORCID: https://orcid.org/0000-0001-9817-695X and Dempster, William M. ORCID logoORCID: https://orcid.org/0000-0001-8918-3832;
    Item type:Article
    ID code:54868
    Keywords:cavitation, CFD, noncondensable gas effect, positive displacement pumps, Mechanical engineering and machinery, Civil and Structural Engineering, Environmental Engineering, Mechanical Engineering, Materials Science(all), Aerospace Engineering, Electrical and Electronic Engineering
    Subjects:Technology > Mechanical engineering and machinery
    Department:Faculty of Engineering > Mechanical and Aerospace Engineering
    Depositing user: Pure Administrator
    Date deposited:11 Dec 2015 01:50
    Last modified:22 Jan 2021 02:20
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/54868
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