Numerical investigation of upward air-water annular, slug and bubbly flow regimes

Hassani, Maryam; Bagheri Motlagh, Mohammad; Kouhikamali, Ramin

doi:10.22061/jcarme.2019.3893.1453

فهرست نشریات

دانشگاه تربیت دبیر شهید رجائی

انتشارات دانشگاه تربیت دبیر شهید رجائی

نشریات مستقل دانشگاه در سامانه ارزیابی نشریات علمی وزارت علوم

نشریه معماری وشهرسازی پایدار موفق به اخذ رتبه علمی-پژوهشی شد

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	Numerical investigation of upward air-water annular, slug and bubbly flow regimes
Journal of Computational & Applied Research in Mechanical Engineering (JCARME)
مقاله 14، دوره 9، شماره 2 - شماره پیاپی 18، اردیبهشت 2020، صفحه 331-341 اصل مقاله (1.26 M)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22061/jcarme.2019.3893.1453
نویسندگان
Maryam Hassani؛ Mohammad Bagheri Motlagh؛ Ramin Kouhikamali^*
Faculty of Mechanical Engineering, University of Guilan, Rasht, Iran
تاریخ دریافت: 27 تیر 1397، تاریخ بازنگری: 19 بهمن 1397، تاریخ پذیرش: 01 اسفند 1397
چکیده
In this paper, numerical investigation of upward two phase flow of air-water has been studied. Different conditions of flow regimes including annular, wispy annular, slug, churn and bubbly are simulated based on Hewitt and Roberts map, and a good agreement between the experimental data of the map and the numerical simulation has been observed. Accordingly, a proper CFD model in CFD software of Fluent with the required User Defined Function (UDF) has been obtained to simulate two phase flows of fluids with large density ratio in vertical tubes. The simulation is carried out with the volume of fluid (VOF) method and piecewise interface calculation (PLIC) algorithm for tracking the interface for the annular, wispy annular, churn and slug flow regimes and drift flux model for bubbly with proper selection of computational cell and time step sizes. Furthermore, water and air momentum fluxes have been changed and the changes to the flow patterns are studied.
کلیدواژه‌ها
Numerical simulation؛ Two phase flow regimes؛ Volume of fluid method؛ Annular؛ Slug؛ Bubbly

مراجع
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Numerical investigation of upward air-water annular, slug and bubbly flow regimes