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Numerical solution of transonic flow of steam with non-equilibrium phase change using typical and simplified method

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F18%3A00320336" target="_blank" >RIV/68407700:21220/18:00320336 - isvavai.cz</a>

  • Result on the web

    <a href="https://ac.els-cdn.com/S0096300317303454/1-s2.0-S0096300317303454-main.pdf?_tid=c80d0421-d73f-4459-8fd1-b404258c23b5&acdnat=1522056861_241db426c430ab4a433d99c95732fd22" target="_blank" >https://ac.els-cdn.com/S0096300317303454/1-s2.0-S0096300317303454-main.pdf?_tid=c80d0421-d73f-4459-8fd1-b404258c23b5&acdnat=1522056861_241db426c430ab4a433d99c95732fd22</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.amc.2017.05.044" target="_blank" >10.1016/j.amc.2017.05.044</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Numerical solution of transonic flow of steam with non-equilibrium phase change using typical and simplified method

  • Original language description

    Simulation of transonic flow of steam with phase changes represents rather complex problem. One has to consider several simplifications to obtain a flow model, which is computationally adequate. Typical current simulations are based on the solution of transport equations for the mixture and additional transport equations for the liquid phase. The creation of new droplets and the growth of already existing droplets is included in the form of source terms, which require a special treatment for time integration. The aim of this paper is to compare an alternative simplified method with a typical method. The alternative simplified method uses no additional transport equations and the non-equilibrium phase change is included in a form of switch from the meta-stable state to the equilibrium state, i.e. switch from the zero to the equilibrium wetness. Although this simplified method cannot provide details about droplet size, it can still be interesting tool for the early steps of the turbine design. Both methods are based on the numerical solution of governing equations using a finite volume method. The advantages and disadvantages of simplified method with respect to typical method are discussed and demonstrated on simulations of flow in nozzle and turbine cascades.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    20303 - Thermodynamics

Result continuities

  • Project

    <a href="/en/project/EF16_019%2F0000826" target="_blank" >EF16_019/0000826: Center of Advanced Aerospace Technology</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2018

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    APPLIED MATHEMATICS AND COMPUTATION

  • ISSN

    0096-3003

  • e-ISSN

    1873-5649

  • Volume of the periodical

    319

  • Issue of the periodical within the volume

    February

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    11

  • Pages from-to

    499-509

  • UT code for WoS article

    000415906200039

  • EID of the result in the Scopus database

    2-s2.0-85019926879