On the parallel momentum balance in low pressure plasmas with an inhomogeneous magnetic field

This paper describes the structure of the parallel momentum balance in low pressure plasmas with an inhomogeneous magnetic field. The parallel momentum balance equation is derived from magnetohydrodynamic equations by an expansion in the inverse magnetic field 1/ B as a small parameter. Contribution...

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Bibliographic Details
Published in:Nuclear fusion 2009-12, Vol.49 (12), p.125001-125001 (5)
Main Authors: Smolyakov, A.I, Garbet, X, Bourdelle, C
Format: Article
Language:English
Subjects:
Exact sciences and technology
Magnetohydrodynamic and fluid equation
Physics
Physics of gases, plasmas and electric discharges
Physics of plasmas and electric discharges
Plasma simulation
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Summary:This paper describes the structure of the parallel momentum balance in low pressure plasmas with an inhomogeneous magnetic field. The parallel momentum balance equation is derived from magnetohydrodynamic equations by an expansion in the inverse magnetic field 1/ B as a small parameter. Contributions of the gyroviscosity and inertia terms are clarified. It is shown that magnetic field curvature leads to important coupling of parallel flow with fluctuations of the electric field and plasma pressure.
ISSN:0029-5515
1741-4326
DOI:10.1088/0029-5515/49/12/125001