کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
520335 867713 2010 19 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A hybrid multilevel method for high-order discretization of the Euler equations on unstructured meshes
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
A hybrid multilevel method for high-order discretization of the Euler equations on unstructured meshes
چکیده انگلیسی

Higher order discretization has not been widely successful in industrial applications to compressible flow simulation. Among several reasons for this, one may identify the lack of tailor-suited, best-practice relaxation techniques that compare favorably to highly tuned lower order methods, such as finite-volume schemes. In this paper we investigate solution algorithms in conjunction with high-order Spectral Difference discretization for the Euler equations, using such techniques as multigrid and matrix-free implicit relaxation methods. In particular we present a novel hybrid multilevel relaxation method that combines (optionally matrix-free) implicit relaxation techniques with explicit multistage smoothing using geometric multigrid. Furthermore, we discuss efficient implementation of these concepts using such tools as automatic differentiation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computational Physics - Volume 229, Issue 10, 20 May 2010, Pages 3938–3956
نویسندگان
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