TY - JOUR
T1 - Available Energy of Trapped Electrons and Its Relation to Turbulent Transport
AU - Mackenbach, R.J.J.
AU - Proll, Josefine H.E.
AU - Helander, P.
PY - 2022/4/29
Y1 - 2022/4/29
N2 - Any collisionless plasma possesses some “available energy” (AE), defined as that part of the thermal energy that can be converted into instabilities and turbulence. Here, we present a calculation of the AE carried by magnetically trapped electrons in a flux tube of collisionless plasma. The AE is compared with nonlinear simulations of the energy flux resulting from collisionless turbulence driven by trapped-electron modes in various magnetic geometries. The numerical calculation of AE is rapid and shows a strong correlation with the simulated energy fluxes, which can be expressed as a power law and understood in terms of a simple model.
AB - Any collisionless plasma possesses some “available energy” (AE), defined as that part of the thermal energy that can be converted into instabilities and turbulence. Here, we present a calculation of the AE carried by magnetically trapped electrons in a flux tube of collisionless plasma. The AE is compared with nonlinear simulations of the energy flux resulting from collisionless turbulence driven by trapped-electron modes in various magnetic geometries. The numerical calculation of AE is rapid and shows a strong correlation with the simulated energy fluxes, which can be expressed as a power law and understood in terms of a simple model.
UR - http://www.scopus.com/inward/record.url?scp=85129721660&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.128.175001
DO - 10.1103/PhysRevLett.128.175001
M3 - Article
C2 - 35570436
SN - 0031-9007
VL - 128
JO - Physical Review Letters
JF - Physical Review Letters
IS - 17
M1 - 175001
ER -