کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
522492 867830 2010 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Conservative Volume-of-Fluid method for free-surface simulations on Cartesian-grids
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
Conservative Volume-of-Fluid method for free-surface simulations on Cartesian-grids
چکیده انگلیسی

This paper contributes to the state of the art in Cartesian-grid methods through development of new advection and reconstruction Volume-of-Fluid (VOF) algorithms which are applicable to two and three-dimensional flows. A computationally efficient and second-order VOF reconstruction method is presented which uses no inversions to determine the interface normal direction. Next, the lack of conservation of fluid volume in previous VOF advection methods are shown to be due to improper treatment of one-dimensional stretching in the velocity field. This paper uses simple explicit time stepping and a cell-center estimate of the volume fraction in the dilatation term to achieve a completely conservative advection method. The new methods are simple, robust and shown to out perform existing approaches for canonical test problems relevant to breaking wave flows.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computational Physics - Volume 229, Issue 8, 20 April 2010, Pages 2853–2865
نویسندگان
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