کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
650432 | 1457281 | 2014 | 16 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Two-phase flow numerical simulation with real-gas effects and occurrence of rarefaction shock waves
ترجمه فارسی عنوان
شبیه سازی عددی جریان دو فازی با اثرات واقعی گاز و وقوع امواج شوک رسوب
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کلمات کلیدی
روش معادله گسسته، لوله شوک، اثرات گاز واقعی، موج شوک رفع،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
چکیده انگلیسی
A discrete equation method (DEM) for the simulation of compressible multiphase flows including real-gas effects is illustrated. A reduced five equation model is obtained starting from the semi-discrete numerical approximation of the two-phase model. A simple procedure is then proposed for using a more complex equation of state, thus improving the quality of the numerical prediction. Classical test-cases well-known in literature are performed featuring a strong importance of thermodynamic complexity for a good prediction of temperature evolution. Finally, a computational study on the occurrence of rarefaction shock waves (RSW) in a two-phase shock tube is presented, with dense vapors of complex organic fluids. Since previous studies have shown that a RSW is relatively weak in a single-phase (vapor) configuration, its occurrence and intensity are investigated considering the influence of the initial volume fraction, initial conditions and the thermodynamic model.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Journal of Mechanics - B/Fluids - Volume 45, MayâJune 2014, Pages 20-35
Journal: European Journal of Mechanics - B/Fluids - Volume 45, MayâJune 2014, Pages 20-35
نویسندگان
M.G. Rodio, P.M. Congedo, R. Abgrall,