کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9702667 | 1462762 | 2005 | 20 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Numerical comparison of the method of transport to a standard scheme
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مکانیک محاسباتی
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
In previous joint work with Zimmermann, we derived Fey's method of transport (MoT), a multidimensional flux vector splitting scheme, from gas kinetic theory via quadrature. Now we present a number of numerical tests in one and two space dimensions showing that similarly to many other flux vector splitting and kinetic schemes, the MoT is very dissipative. In order to quantify its numerical dissipation, we compare the second order MoT-ICE [J. Comput. Phys. 164(2) (2000) 283] to the classical, very simple, and at the same time very robust Harten-Lax-van Leer (HLL) scheme (also in a second order version), whose most significant drawback is its comparatively high dissipativity. Our numerical experiments indicate that the MoT-ICE is approximately as dissipative as the much cheaper HLL scheme. Recall that the HLL scheme does not suffer from any of the known multidimensional instabilities, which have been a prime motivation for the development of Riemann solver free schemes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Fluids - Volume 34, Issues 4â5, MayâJune 2005, Pages 541-560
Journal: Computers & Fluids - Volume 34, Issues 4â5, MayâJune 2005, Pages 541-560
نویسندگان
Tim Kröger, Sebastian Noelle,