Barriers for transport in turbulent plasmas

被引：6

作者：

Carbone, V

Lepreti, F

Veltri, P

机构：

[1] Univ Calabria, Dipartimento Fis, I-87036 Arcavacata Di Rende, CS, Italy

[2] Univ Calabria, Ist Nazl Fis Mat, I-87036 Arcavacata Di Rende, CS, Italy

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 90卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.90.055001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The control of transport due to electrostatic turbulence is investigated using test-particle simulations. We show that a barrier for the transport, that is, a region where transport is reduced, can be generated through the randomization of phases of the turbulent field. This corresponds to the annihilation of coherent structures which are present at all scales, without actually suppressing turbulence. When the barrier is active, a flux of particles towards the center of the simulation box is present inside the region where the barrier is located.

引用

页码：4 / 055001

页数：4

共 24 条

[1] Non-Gaussian transport in strong plasma turbulence [J].

Annibaldi, SV ;

Manfredi, G ;

Dendy, RO .

PHYSICS OF PLASMAS, 2002, 9 (03) :791-799

[2] Transport processes in reversed-field-pinch plasmas: Inconsistency with the self-organized-criticality paradigm [J].

Antoni, V ;

Carbone, V ;

Cavazzana, R ;

Regnoli, G ;

Vianello, N ;

Spada, E ;

Fattorini, L ;

Martines, E ;

Serianni, G ;

Spolaore, M ;

Tramontin, L ;

Veltri, P .

PHYSICAL REVIEW LETTERS, 2001, 87 (04) :45001-1

[3] Electrostatic turbulence intermittency and MHD relaxation phenomena in a RFP plasma [J].

Antoni, V ;

Carbone, V ;

Martines, E ;

Regnoli, G ;

Serianni, G ;

Vianello, N ;

Veltri, P .

EUROPHYSICS LETTERS, 2001, 54 (01) :51-57

[4]

BOHR T, 1998, DYNAMICAL SYSTEM APP

[5] High core electron confinement regimes in FTU plasmas with low- or reversed-magnetic shear and high power density electron-cyclotron-resonance heating [J].

Buratti, P ;

Barbato, E ;

Bracco, G ;

Cirant, S ;

Crisanti, F ;

Granucci, G ;

Tuccillo, AA ;

Zanza, V ;

Zerbini, M ;

Acitelli, L ;

Alladio, F ;

Angelini, B ;

Apicella, ML ;

Apruzzese, G ;

Bertalot, L ;

Bertocchi, A ;

Borra, M ;

Bruschi, A ;

Buceti, G ;

Cardinali, A ;

Centioli, C ;

Cesario, R ;

Cianfarani, C ;

Ciattaglia, S ;

Cocilovo, V ;

De Angelis, R ;

De Marco, F ;

Esposito, B ;

Frigione, D ;

Gabellieri, L ;

Gatti, G ;

Giovannozzi, E ;

Gourlan, C ;

Grolli, M ;

Imparato, A ;

Kroegler, H ;

Leigheb, M ;

Lovisetto, L ;

Maddaluno, G ;

Maffia, G ;

Marinucci, M ;

Mazzitelli, G ;

Micozzi, P ;

Mirizzi, F ;

Nowak, S ;

Orsitto, FP ;

Pacella, D ;

Panaccione, L ;

Panella, M ;

Ridolfini, VP .

PHYSICAL REVIEW LETTERS, 1999, 82 (03) :560-563

[6] Intermittency and turbulence in a magnetically confined fusion plasma [J].

Carbone, V ;

Sorriso-Valvo, L ;

Martines, E ;

Antoni, V ;

Veltri, P .

PHYSICAL REVIEW E, 2000, 62 (01) :R49-R52

[7] To what extent can dynamical models describe statistical features of turbulent flows? [J].

Carbone, V ;

Cavazzana, R ;

Antoni, V ;

Sorriso-Valvo, L ;

Spada, E ;

Regnoli, G ;

Giuliani, P ;

Vianello, N ;

Lepreti, F ;

Bruno, R ;

Martines, E ;

Veltri, P .

EUROPHYSICS LETTERS, 2002, 58 (03) :349-355

[8] Intermittency and self-similarity in plasma edge fluctuations [J].

Carbone, V ;

Regnoli, G ;

Martines, E ;

Antoni, V .

PHYSICS OF PLASMAS, 2000, 7 (02) :445-447

[9]

DEVYNCK P, COMMUNICATION

[10] Electron temperature gradient turbulence [J].

Dorland, W ;

Jenko, F ;

Kotschenreuther, M ;

Rogers, BN .

PHYSICAL REVIEW LETTERS, 2000, 85 (26) :5579-5582

← 1 2 3 →