کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10349831 | 863716 | 2009 | 20 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Two-dimensional central-upwind schemes for curvilinear grids and application to gas dynamics with angular momentum
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Two-dimensional central-upwind schemes for curvilinear grids and application to gas dynamics with angular momentum Two-dimensional central-upwind schemes for curvilinear grids and application to gas dynamics with angular momentum](/preview/png/10349831.png)
چکیده انگلیسی
In this work we present new second order semi-discrete central schemes for systems of hyperbolic conservation laws on curvilinear grids. Our methods generalise the two-dimensional central-upwind schemes developed by Kurganov and Tadmor [A. Kurganov, E. Tadmor, Numer. Methods Partial Differential Equations 18 (2002) 584. [1]]. In these schemes we account for area and volume changes in the numerical flux functions due to the non-cartesian geometries. In case of vectorial conservation laws we introduce a general prescription of the geometrical source terms valid for various orthogonal curvilinear coordinate systems. The methods are applied to the two-dimensional Euler equations of inviscid gas dynamics with and without angular momentum transport. In the latter case we introduce a new test problem to examine the detailed conservation of specific angular momentum.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Physics Communications - Volume 180, Issue 11, November 2009, Pages 2283-2302
Journal: Computer Physics Communications - Volume 180, Issue 11, November 2009, Pages 2283-2302
نویسندگان
Tobias F. Illenseer, Wolfgang J. Duschl,