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Numerical Solution of 2D Wet Steam Flow with Non-equilibrium Condensation and Real Thermodynamics

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F15%3A00234304" target="_blank" >RIV/68407700:21220/15:00234304 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.1063/1.4912347" target="_blank" >http://dx.doi.org/10.1063/1.4912347</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1063/1.4912347" target="_blank" >10.1063/1.4912347</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Numerical Solution of 2D Wet Steam Flow with Non-equilibrium Condensation and Real Thermodynamics

  • Original language description

    An approach to modeling of wet steam flow with non-equilibrium condensation phenomenon is presented. The first part of our flow model is homogeneous Euler system of transport equations for mass, momentum and total energy of wet steam (mixture). The additional second part describes liquid phase via non-homogeneous system of transport equations for moments of droplets number distribution function and relies on corrected classical nucleation theory. Moment equations are closed by linearization of droplet growth rate model. All necessary relations for thermodynamic properties of steam are provided by IAPWS set of equations. However, properties of condensate are simply modeled by liquid saturation data. Two real equations of state are implemented. Recently developed CFD formulation for entropy (does not require iteration process) and so-called IAPWS special gas equation for Helmholtz energy (one iteration loop is necessary). Flow model is validated on converging-diverging supersonic nozzle with Barschdorff geometry. Simulations were performed by in-house CFD code based on finite volume method and stiff character of equations was solved by symmetrical time operator splitting. Achieved results satisfactorily agreed with experimental data.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

    BK - Liquid mechanics

  • OECD FORD branch

Result continuities

  • Project

  • Continuities

    S - Specificky vyzkum na vysokych skolach

Others

  • Publication year

    2015

  • Confidentiality

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

Data specific for result type

  • Article name in the collection

    PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON NUMERICAL ANALYSIS AND APPLIED MATHEMATICS 2014 (ICNAAM-2014)

  • ISBN

    978-0-7354-1287-3

  • ISSN

    0094-243X

  • e-ISSN

  • Number of pages

    4

  • Pages from-to

    -1

  • Publisher name

    AIP Conference Proceedings

  • Place of publication

    New York

  • Event location

    Rhodes, Greece

  • Event date

    Sep 22, 2014

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article

    000355339700042