کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1772694 | 1021058 | 2012 | 27 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Large-scale molecular dynamics simulations of dense plasmas: The Cimarron Project
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
نجوم و فیزیک نجومی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
We describe the status of a new time-dependent simulation capability for dense plasmas. The backbone of this multi-institutional effort - the Cimarron Project - is the massively parallel molecular dynamics (MD) code “ddcMD,” developed at Lawrence Livermore National Laboratory. The project's focus is material conditions such as exist in inertial confinement fusion experiments, and in many stellar interiors: high temperatures, high densities, significant electromagnetic fields, mixtures of high- and low-Z elements, and non-Maxwellian particle distributions. Of particular importance is our ability to incorporate into this classical MD code key atomic, radiative, and nuclear processes, so that their interacting effects under non-ideal plasma conditions can be investigated. This paper summarizes progress in computational methodology, discusses strengths and weaknesses of quantum statistical potentials as effective interactions for MD, explains the model used for quantum events possibly occurring in a collision, describes two new experimental efforts that play a central role in our validation work, highlights some significant results obtained to date, outlines concepts now being explored to deal more efficiently with the very disparate dynamical timescales that arise in fusion plasmas, and provides a careful comparison of quantum effects on electron trajectories predicted by more elaborate dynamical methods.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: High Energy Density Physics - Volume 8, Issue 1, March 2012, Pages 105-131
Journal: High Energy Density Physics - Volume 8, Issue 1, March 2012, Pages 105-131
نویسندگان
Frank R. Graziani, Victor S. Batista, Lorin X. Benedict, John I. Castor, Hui Chen, Sophia N. Chen, Chris A. Fichtl, James N. Glosli, Paul E. Grabowski, Alexander T. Graf, Stefan P. Hau-Riege, Andrew U. Hazi, Saad A. Khairallah, Liam Krauss,