کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8053349 1519427 2018 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Two methods of surface tension treatment in free surface flow simulations
ترجمه فارسی عنوان
دو روش درمان سطح کشش در شبیه سازی جریان آزاد
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک محاسباتی
چکیده انگلیسی
We describe our approach to treatment of surface tension in free surface flow simulations on adaptive octree-type grids. The approach is based on the semi-Lagrangian method for the transport and momentum equations and the pressure projection method to enforce the incompressibility constrain. The surface tension contributes to the Dirichlet boundary condition for the pressure equation at the projection step. The treatment of surface tension is based either on accurate finite difference calculation of the mean curvature or on a curvature estimation by the implicit solution of conservative mean curvature flow problem. The first method provides almost the second order accuracy in space for surface tension forces. The second method is characterized by greater stability and essentially larger time steps. Numerical experiments illustrate the main features of the methods.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Mathematics Letters - Volume 86, December 2018, Pages 236-242
نویسندگان
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