کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10355982 | 867598 | 2014 | 19 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A robust method for calculating interface curvature and normal vectors using an extracted local level set
ترجمه فارسی عنوان
یک روش قوی برای محاسبه انحنای رابط و بردارهای طبیعی با استفاده از یک مجموعه محلی استخراج شده
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کلمات کلیدی
روش اندازه گیری سطح، انحنای، بردار عادی، تعامل قطره-فیلم،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
نرم افزارهای علوم کامپیوتر
چکیده انگلیسی
The level-set method is a popular interface tracking method in two-phase flow simulations. An often-cited reason for using it is that the method naturally handles topological changes in the interface, e.g. merging drops, due to the implicit formulation. It is also said that the interface curvature and normal vectors are easily calculated. This last point is not, however, the case in the moments during a topological change, as several authors have already pointed out. Various methods have been employed to circumvent the problem. In this paper, we present a new such method which retains the implicit level-set representation of the surface and handles general interface configurations. It is demonstrated that the method extends easily to 3D. The method is validated on static interface configurations, and then applied to two-phase flow simulations where the method outperforms the standard method and the results agree well with experiments.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computational Physics - Volume 257, Part A, 15 January 2014, Pages 259-277
Journal: Journal of Computational Physics - Volume 257, Part A, 15 January 2014, Pages 259-277
نویسندگان
Ã
smund Ervik, Karl Yngve Lervåg, Svend Tollak Munkejord,