کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
521141 867755 2006 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A second-order boundary-fitted projection method for free-surface flow computations
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
A second-order boundary-fitted projection method for free-surface flow computations
چکیده انگلیسی

This paper describes a new approach to the high-fidelity simulation of axisymmetric free-surface flows. A boundary-fitted grid is coupled with a new projection method for the solution of the Navier–Stokes equations with second-order accuracy in space and time. Two variants of this new method are developed by adapting two existing algorithms, suitable for prescribed velocity boundary conditions, to the case of prescribed normal and tangential stresses at the free boundary. A normal-mode analysis for a fixed-boundary problem confirms the second-order accuracy of the algorithms. The approach is validated by comparison with a Rayleigh–Plesset solution for an oscillating spherical bubble, with an analysis of shape oscillations, and with existing results for the buoyant rise of a deforming bubble for Reynolds numbers up to 200 and Weber numbers up to 12. In addition to the simulation of axisymmetric free-surface flows of intrinsic interest, the present approach is suitable for the validation of genuinely three-dimensional calculations.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computational Physics - Volume 213, Issue 2, 10 April 2006, Pages 574–590
نویسندگان
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