Pressure-Strain Interaction: II. Decomposition in Magnetic Field-Aligned Coordinates
arXiv:2211.13161 · doi:10.1063/5.0125252
Abstract
In weakly collisional and collisionless magnetized plasmas, the pressure-strain interaction describes the rate of conversion between bulk flow and thermal energy density. In this study, we derive an analytical expression for the pressure-strain interaction in a coordinate system with an axis aligned with the local magnetic field. The result is eight groups of terms corresponding to different physical mechanisms that can contribute to the pressure-strain interaction. We provide a physical description of each term. The results are immediately of interest to weakly collisional and collisionless magnetized plasmas and the fundamental processes that happen therein, including magnetic reconnection, magnetized plasma turbulence, and collisionless shocks. The terms in the field-aligned coordinate decomposition are likely accessible to measurement with satellite observations.
arXiv comment12 pages, 1 figure, accepted to Physics of Plasmas
References in corpus (18)
- Energy transfer, pressure tensor and heating of kinetic plasma
- Pressure anisotropy and small spatial scales induced by velocity shear
- Statistics of Kinetic Dissipation in Earth's Magnetosheath -- MMS Observations
- Dependence of Kinetic Plasma Turbulence on Plasma beta
- Scale dependence of energy transfer in turbulent plasma
- Pressure-Strain Interaction as the Energy Dissipation Estimate in Collisionless Plasma
- Plasma Energization in Colliding Magnetic Flux Ropes
- Energy Dissipation in Turbulent Reconnection
- Energy Dissipation and Entropy in Collisionless Plasma
- Role of magnetic field curvature in magnetohydrodynamic turbulence
- Energy conversion in turbulent weakly-collisional plasmas: Eulerian Hybrid Vlasov-Maxwell simulations
- Pressure-Strain Interaction: I. On Compression, Deformation, and Implications For Pi-D
- Curvature of magnetic field lines in compressible magnetized turbulence: Statistics, magnetization predictions, gradient curvature, modes and self-gravitating media
- Pressure-Strain Interaction: III. Particle-in-Cell Simulations of Magnetic Reconnection
- In situ Measurement of Curvature of Magnetic Field in Turbulent Space Plasmas: A Statistical Study
- Local thermodynamics of a magnetized, anisotropic plasma
- In situ spacecraft observations of a structured electron diffusion region during magnetopause reconnection
- Ion-scale transition of plasma turbulence: Pressure-strain effect
Cited by in corpus (5)
- Pressure-Strain Interaction: I. On Compression, Deformation, and Implications For Pi-D
- Quantifying Energy Conversion in Higher Order Phase Space Density Moments in Plasmas
- Pressure-Strain Interaction: III. Particle-in-Cell Simulations of Magnetic Reconnection
- Higher-order nonequilibrium term: Effective power density quantifying evolution towards or away from local thermodynamic equilibrium
- Turbulent dynamo in the terrestrial magnetosheath