کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
655307 1457657 2010 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Parametric study of LES subgrid terms in a turbulent phase separation flow
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Parametric study of LES subgrid terms in a turbulent phase separation flow
چکیده انگلیسی

The present work provides an a priori estimate of the specific LES subgrid terms occurring in the filtered 1-fluid Navier–Stokes equations that model the dynamics of turbulent two-phase flows involving separated phases. Three-dimensional simulations of a water/oil phase separation in a cubic cavity are carried out without explicit turbulent modeling. A parametric study is investigated for various surface tension coefficients, density and dynamic viscosity ratios. The numerical results obtained with these parametric simulations are then explicitly filtered to quantify the relative magnitude of each LES subgrid terms. A classification of these subgrid terms is finally provided for the phase inversion configuration.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Fluid Flow - Volume 31, Issue 4, August 2010, Pages 536–544
نویسندگان
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