کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7156017 | 1462641 | 2018 | 36 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An efficient modified WENO scheme based on the identification of inflection points
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مکانیک محاسباتی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: An efficient modified WENO scheme based on the identification of inflection points An efficient modified WENO scheme based on the identification of inflection points](/preview/png/7156017.png)
چکیده انگلیسی
In this paper, a new modified fifth-order weighted essentially non-oscillatory (WENO) scheme is proposed by introducing a switching principle based on the identification of inflection points. The switching principle adjusts the scheme between the linear upwind scheme and the WENO-M scheme automatically. If there is one or more inflection points located in the large reconstruction stencil, the WENO-M procedure is applied to reconstruct the numerical flux, instead of the classical WENO scheme; otherwise, the linear upwind scheme is used. The new scheme is more efficient due to the identification of the inflection points, and has higher numerical accuracy and resolution due to the usage of WENO-M procedure. A set of benchmark problems are conducted and analyzed to verify the performance enhancement. The extreme shock tube problem of Leblanc is computed to demonstrate the robustness of the new scheme.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Fluids - Volume 170, 15 July 2018, Pages 176-186
Journal: Computers & Fluids - Volume 170, 15 July 2018, Pages 176-186
نویسندگان
Chai Delin, Xi Guang, Sun Zhongguo, Wang Zhiheng, Huang Zhu,