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Hassani, Maryam, Bagheri Motlagh, Mohammad, Kouhikamali, Ramin. (1398). Numerical investigation of upward air-water annular, slug and bubbly flow regimes. فناوری آموزش, 9(2), 331-341. doi: 10.22061/jcarme.2019.3893.1453
Maryam Hassani; Mohammad Bagheri Motlagh; Ramin Kouhikamali. "Numerical investigation of upward air-water annular, slug and bubbly flow regimes". فناوری آموزش, 9, 2, 1398, 331-341. doi: 10.22061/jcarme.2019.3893.1453
Hassani, Maryam, Bagheri Motlagh, Mohammad, Kouhikamali, Ramin. (1398). 'Numerical investigation of upward air-water annular, slug and bubbly flow regimes', فناوری آموزش, 9(2), pp. 331-341. doi: 10.22061/jcarme.2019.3893.1453
Hassani, Maryam, Bagheri Motlagh, Mohammad, Kouhikamali, Ramin. Numerical investigation of upward air-water annular, slug and bubbly flow regimes. فناوری آموزش, 1398; 9(2): 331-341. doi: 10.22061/jcarme.2019.3893.1453

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 (1.07 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
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