کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
520883 | 867740 | 2011 | 19 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A positivity-preserving ALE finite element scheme for convection–diffusion equations in moving domains
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: A positivity-preserving ALE finite element scheme for convection–diffusion equations in moving domains A positivity-preserving ALE finite element scheme for convection–diffusion equations in moving domains](/preview/png/520883.png)
چکیده انگلیسی
A new high-resolution scheme is developed for convection–diffusion problems in domains with moving boundaries. A finite element approximation of the governing equation is designed within the framework of a conservative Arbitrary Lagrangian Eulerian (ALE) formulation. An implicit flux-corrected transport (FCT) algorithm is implemented to suppress spurious undershoots and overshoots appearing in convection-dominated problems. A detailed numerical study is performed for P1 finite element discretizations on fixed and moving meshes. Simulation results for a Taylor dispersion problem (moderate Peclet numbers) and for a convection-dominated problem (large Peclet numbers) are presented to give a flavor of practical applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computational Physics - Volume 230, Issue 8, 20 April 2011, Pages 2896–2914
Journal: Journal of Computational Physics - Volume 230, Issue 8, 20 April 2011, Pages 2896–2914
نویسندگان
Oleg Boiarkine, Dmitri Kuzmin, Sunčica Čanić, Giovanna Guidoboni, Andro Mikelić,