کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
521154 867755 2006 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A new conservative unsplit method for the solution of the Vlasov equation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
A new conservative unsplit method for the solution of the Vlasov equation
چکیده انگلیسی

We have developed a new conservative method for solving the Vlasov equation without using any splitting technique. Our goal is to maintain the positivity of the distribution function and to avoid un-physical oscillations which might lead to numerical instabilities. Based on a finite volume conservative discretization of the conservative form of the Vlasov equation we implemented a highly accurate second-order upwind scheme. In order to avoid un-physical oscillations and their possible numerical instability we apply a flux-limiter in the second order. We validate our new Vlasov solver by considering standard cases of one-dimensional current-driven ion-acoustic instabilities solving a Vlasov–Ampère set of equations.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computational Physics - Volume 213, Issue 2, 10 April 2006, Pages 862–875
نویسندگان
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