4.6 Article

On the origin of the energy dissipation anomaly in (Hall) magnetohydrodynamics

出版社

IOP PUBLISHING LTD
DOI: 10.1088/1751-8121/aabbb5

关键词

magnetohydrodynamics; turbulence; astrophysics

资金

  1. PNST (Programme National Soleil-Terre) INSU-CNRS
  2. LIA-MAGNETO-CNRS/CONICET

向作者/读者索取更多资源

Incompressible Hall magnetohydrodynamics (MHD) may be the subject of energy dissipation anomaly D-a, which stems from the lack of smoothness of the velocity and magnetic fields. I derive the exact expression of D-a, which appears to be closely connected with the well-known 4/3 exact law of Hall MHD turbulence theory. This remarkable similitude suggests a deeper mathematical property of the fluid equations. In the MHD limit, the expression of D-a differs from the one derived by Gao et al (2013 Acta Math. Sci. 33 865-71) which presents miscalculations. The energy dissipation anomaly can be used to better estimate the local heating in space plasmas where in situ measurements are accessible.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.6
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据