کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7156107 1462642 2018 26 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A posteriori limiting for 2D Lagrange plus Remap schemes solving the hydrodynamics system of equations
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک محاسباتی
پیش نمایش صفحه اول مقاله
A posteriori limiting for 2D Lagrange plus Remap schemes solving the hydrodynamics system of equations
چکیده انگلیسی
In this article we show the gain in accuracy and robustness brought by the use of a a posteriori MOOD limiting in replacement of the classical slope limiter employed in the remap phase of a legacy second-order Lagrange+Remap scheme solving the Euler system of equations. This simple substitution ensures extended robustness property, better accuracy and ability to capture physical phenomena. Numerical tests in 2D assess those improvements and the relative low cost of this a posteriori approach by reporting the number of troubled cells which demand re-computation. Situations like the occurrence of Not-a-Number, negative density and spurious numerical oscillations can therefore be cured.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Fluids - Volume 169, 30 June 2018, Pages 249-262
نویسندگان
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