Results 61 to 70 of about 196 (131)

Generation of shear flows induced by AE / EPM in LHD plasma

Nuclear Fusion
The generation of shear flows (SFs) by Alfven Eigenmodes (AEs) and energetic particle modes (EPMs) have important effects on the operation of future nuclear fusion reactors, because SFs regulate the saturation of the AEs/EPMs, the transport of EPs and ...
J. Varela, C. Hidalgo, T. Tokuzawa, K. Nagaoka, K. Tanaka, K. Nagasaki, S. Ohdachi, K. Ida, X. Du, A. Cappa, S. Sharapov, D. Zarzoso, D.A. Spong, L. Garcia, Y. Ghai, J. Ortiz   +15 more
doaj   +1 more source

Waves in planetary dynamos. [PDF]

Rev Mod Plasma Phys, 2023
Hori K, Nilsson A, Tobias SM.
europepmc   +1 more source

Large scale coherent magnetohydrodynamic oscillations in a sunspot. [PDF]

Nat Commun, 2022
Stangalini M, Verth G, Fedun V, Aldhafeeri AA, Jess DB, Jafarzadeh S, Keys PH, Fleck B, Terradas J, Murabito M, Ermolli I, Soler R, Giorgi F, MacBride CD.   +13 more
europepmc   +1 more source

The magnetic coherent mode with shifted Alfvén gap frequency destabilized by the thermal trapped electron resonance in the pedestal of high-confinement tokamak plasmas

Nuclear Fusion
The magnetic coherent modes (MCM) with toroidal mode number n about 1 (Chen R. et al 2018 Nucl. Fusion 58 112004) frequently appear in the edge pedestal of high-confinement tokamak plasmas on EAST in the absence of energetic particles.
Xingquan Wu (伍兴权), Guosheng Xu (徐国盛), Ran Chen (陈冉), Baonian Wan (万宝年)   +3 more
doaj   +1 more source

Cosmic ray feedback in galaxies and galaxy clusters: A pedagogical introduction and a topical review of the acceleration, transport, observables, and dynamical impact of cosmic rays. [PDF]

Astron Astrophys Rev, 2023
Ruszkowski M, Pfrommer C.
europepmc   +1 more source

Perturbative model for the saturation of energetic-particle-driven modes limited by self-generated zonal modes

Nuclear Fusion
We present a simplified energy-conserving approach to incorporate wave–wave nonlinear effects within the framework commonly used to describe wave–particle nonlinearities.
T. Barberis, V.N. Duarte, E.J. Hartigan-O’Connor, N.N. Gorelenkov   +3 more
doaj   +1 more source

Recent advances in high- β N experiments and magnetohydrodynamic instabilities with hybrid scenarios in the HL-2A Tokamak. [PDF]

Fundam Res, 2022
Chen W, Yu L, Xu M, Ji X, Shi Z, He X, Li Z, Li Y, Wang T, Jiang M, Gong S, Wen J, Shi P, Yang Z, Fang K, Li J, Wei L, Zhong W, Sun A, Cao J, Bai X, Li J, Ding X, Dong J, Yang Q, Liu Y, Yan L, Wang Z, Duan X.   +28 more
europepmc   +1 more source

Exact Nonlinear Decomposition of Ideal-MHD Waves Using Eigenenergies. II. Fully Analytical Equations and Pseudoadvective Eigenenergies

The Astrophysical Journal
Physical insight into plasma evolution in the magnetohydrodynamic (MHD) limit can be revealed by decomposing the evolution according to the characteristic modes of the system. In this paper we explore aspects of the eigenenergy decomposition method (EEDM)
Axel Raboonik, David I. Pontin, Lucas A. Tarr   +2 more
doaj   +1 more source

Transverse oscillations and an energy source in a strongly magnetized sunspot. [PDF]

Nat Astron, 2023
Yuan D, Fu L, Cao W, Kuźma B, Geeraerts M, Trelles Arjona JC, Murawski K, Van Doorsselaere T, Srivastava AK, Miao Y, Feng S, Feng X, Noda CQ, Cobo BR, Su J.   +14 more
europepmc   +1 more source

Bursting core-localized ellipticity-induced Alfvén eigenmodes driven by energetic electrons during EAST ohmic discharges

Nuclear Fusion
A series of high-frequency ( $400\sim1000{\text{ kHz}}$ ) bursting core-localized Alfvén instabilities have been observed during ohmic discharges in EAST tokamak. The instability trigger favours the discharge conditions of low toroidal magnetic field and
P. Su, H. Lan, C. Zhou, J. Bao, A. Liu, X. Zhu, M. Wu, C. Luo, J. Han, J. Wang, H. Liu, T. Zhang, R. Zhou, S. Lin, H. Zhao, Y. Sun, Z. Qiu, N. Chu, T. Tang, Y. Tan, L. Zeng, Z. Gao   +21 more
doaj   +1 more source