کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10357399 | 867869 | 2005 | 30 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A hybrid kinetic-fluid model for solving the Vlasov-BGK equation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: A hybrid kinetic-fluid model for solving the Vlasov-BGK equation A hybrid kinetic-fluid model for solving the Vlasov-BGK equation](/preview/png/10357399.png)
چکیده انگلیسی
Our purpose is to derive a model for charged particles which combines a kinetic description of the fast particles with a fluid description of the slow ones. In a previous paper, a similar model was derived from a kinetic BGK equation that uses a constant relaxation time and does not include the effect of an electric field. In this paper, we consider a more general kinetic equation including an electric field and a varying relaxation time. Fast particles will be described through a collisional kinetic equation of Vlasov-BGK type while thermal particles will be modeled by a hydrodynamic model. Then, we construct a numerical scheme for this model and validate the approach by presenting various numerical tests.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computational Physics - Volume 203, Issue 2, 1 March 2005, Pages 572-601
Journal: Journal of Computational Physics - Volume 203, Issue 2, 1 March 2005, Pages 572-601
نویسندگان
Nicolas Crouseilles, Pierre Degond, Mohammed Lemou,