Numerical Simulation of Flashing Flows in a Converging–Diverging Nozzle with Interfacial Area Transport Equation
نویسندگان
چکیده
Flashing flows of initially sub-cooled water in a converging–diverging nozzle is investigated numerically the framework two-fluid model (TFM). The thermal non-equilibrium effect phase change considered by an interfacial heat transfer model, while pressure jump across interface ignored. bubble size distribution induced nucleation, growth/shrinkage, coalescence, and breakup described based on area transport equation (IATE) constant number density (CBND), respectively. results are compared with experimental data. Satisfactory prediction axial along as well flashing inception, achieved TFM-IATE coupling method. It was also found that vapor production diverging section overpredicted, radial gas volume fraction deviated from experiment. diameter profiles exhibit opposite patterns at throat near outlet, similar trends can be observed for superheated degree. A poly-disperse method suggested to introduced describe evolution concentration.
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ژورنال
عنوان ژورنال: Processes
سال: 2023
ISSN: ['2227-9717']
DOI: https://doi.org/10.3390/pr11082365