کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1772511 1021049 2013 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Numerical simulations of Z-pinch experiments to create supersonic differentially-rotating plasma flows
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم نجوم و فیزیک نجومی
پیش نمایش صفحه اول مقاله
Numerical simulations of Z-pinch experiments to create supersonic differentially-rotating plasma flows
چکیده انگلیسی

The aim of this work is to produce and study a high energy density laboratory plasma relevant to astrophysical accretion disks. To this end, an experimental setup based on a modified cylindrical wire array was devised, which employs a cusp magnetic field to introduce angular momentum into the system. The setup was studied numerically with the three-dimensional, resistive magneto-hydrodynamic code GORGON. Simulations show that a differentially-rotating flow is formed, with typical rotation velocity and Mach number values of 60 km/s and Mφ ∼ 5 respectively. The plasma is radiatively cooled and presents a Reynolds number higher than 107. In addition, the magnetic Reynolds number and the plasma β are >1. Such a plasma is of interest for the study of hydrodynamic and magneto-hydrodynamic instabilities, and turbulence generation in differentially-rotating plasma flows.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: High Energy Density Physics - Volume 9, Issue 1, March 2013, Pages 108–111
نویسندگان
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