کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6916738 | 862933 | 2015 | 16 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Multiwavelet discontinuous Galerkin h-adaptive shallow water model
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
This paper presents a Godunov-type numerical formulation that is local, conservative and scalable in both accuracy and resolution. The keystone of the framework is to recast a local multi-resolution discontinuous Galerkin formulation and, combine it with multiwavelets (MWDG) to adaptively determine local resolution level by manipulating multiwavelet coefficients driven by one threshold value set by the user. Recent advances in discontinuous Galerkin modelling of the shallow water equations with topography source term are directly transferred to the MWDG framework. The adaptive MWDG model is tested for simulation of transient and steady shallow flow test cases demonstrating ability to model compound flows with appropriate level resolutions, and with comparable predictive quality as uniform mesh counterpart corresponding to highest resolution available.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Methods in Applied Mechanics and Engineering - Volume 294, 1 September 2015, Pages 56-71
Journal: Computer Methods in Applied Mechanics and Engineering - Volume 294, 1 September 2015, Pages 56-71
نویسندگان
Georges Kesserwani, Daniel Caviedes-Voullième, Nils Gerhard, Siegfried Müller,