Report
Relaxation to magnetohydrodynamics equilibria via collision brackets
| العنوان: | Relaxation to magnetohydrodynamics equilibria via collision brackets |
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| المؤلفون: | Bressan, C., Kraus, M., Morrison, P. J., Maj, O. |
| سنة النشر: | 2018 |
| المجموعة: | Physics (Other) |
| مصطلحات موضوعية: | Physics - Plasma Physics |
| الوصف: | Metriplectic dynamics is applied to compute equilibria of fluid dynamical systems. The result is a relaxation method in which Hamiltonian dynamics (symplectic structure) is combined with dissipative mechanisms (metric structure) that relaxes the system to the desired equilibrium point. The specific metric operator, which is considered in this work, is formally analogous to the Landau collision operator. These ideas are illustrated by means of case studies. The considered physical models are the Euler equations in vorticity form, the Grad-Shafranov equation, and force-free MHD equilibria. Comment: Conference Proceeding (Theory of Fusions Plasmas, 2018), 9 pages, 8 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1088/1742-6596/1125/1/012002 |
| URL الوصول: | http://arxiv.org/abs/1809.03949 |
| رقم الانضمام: | edsarx.1809.03949 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1088/1742-6596/1125/1/012002 |
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