Convection-driven quadrupolar dynamos in rotating spherical shells

被引：34

作者：

Grote, E ^{[1
]}

Busse, FH ^{[1
]}

Tilgner, A ^{[1
]}

机构：

[1] Univ Bayreuth, Inst Phys, D-95440 Bayreuth, Germany

来源：

PHYSICAL REVIEW E | 1999年 / 60卷 / 05期

关键词：

D O I：

10.1103/PhysRevE.60.R5025

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

It is found that for Taylor numbers of the order 10(8) quadrupolar dynamos aligned with the axis of rotation are preferred in comparison with dipolar dynamos. This preference holds for a range of Prandtl numbers P and magnetic Prandtl numbers P-m in the neighborhood of unity. The main time-dependent feature of the quadrupolar dynamos are polward traveling waves. [S1063-651X(99)50111-6].

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收藏

页码：R5025 / R5028

页数：4

相关论文

共 16 条

[1] On convection driven dynamos in rotating spherical shells [J].

Busse, FH ;

Grote, E ;

Tilgner, A .

STUDIA GEOPHYSICA ET GEODAETICA, 1998, 42 (03) :211-223

[2] A dynamo model interpretation of geomagnetic field structures [J].

Christensen, U ;

Olson, P ;

Glatzmaier, GA .

GEOPHYSICAL RESEARCH LETTERS, 1998, 25 (10) :1565-1568

[3] A 3-DIMENSIONAL SELF-CONSISTENT COMPUTER-SIMULATION OF A GEOMAGNETIC-FIELD REVERSAL [J].

GLATZMAIER, GA ;

ROBERTS, PH .

NATURE, 1995, 377 (6546) :203-209

[4] A 3-DIMENSIONAL CONVECTIVE DYNAMO SOLUTION WITH ROTATING AND FINITELY CONDUCTING INNER-CORE AND MANTLE [J].

GLATZMAIER, GA ;

ROBERTS, PH .

PHYSICS OF THE EARTH AND PLANETARY INTERIORS, 1995, 91 (1-3) :63-75

[5]

GROTE E, IN PRESS PHYS EARTH

[6] STATIONARY AND CHAOTIC DYNAMOS IN ROTATING SPHERICAL-SHELLS [J].

HIRSCHING, W ;

BUSSE, FH .

PHYSICS OF THE EARTH AND PLANETARY INTERIORS, 1995, 90 (3-4) :243-254

[7] The magnetic fields of Uranus and Neptune: Methods and models [J].

Holme, R ;

Bloxham, J .

JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS, 1996, 101 (E1) :2177-2200

[8] An earth-like numerical dynamo model [J].

Kuang, WL ;

Bloxham, J .

NATURE, 1997, 389 (6649) :371-374

[9] Asymptotic properties of a nonlinear alpha omega-dynamo wave: Period, amplitude and latitude dependence [J].

Meunier, N ;

Proctor, MRE ;

Sokoloff, DD ;

Soward, AM ;

Tobias, SM .

GEOPHYSICAL AND ASTROPHYSICAL FLUID DYNAMICS, 1997, 86 (3-4) :249-285

[10] MAGNETIC-FIELDS AT URANUS [J].

NESS, NF ;

ACUNA, MH ;

BEHANNON, KW ;

BURLAGA, LF ;

CONNERNEY, JEP ;

LEPPING, RP ;

NEUBAUER, FM .

SCIENCE, 1986, 233 (4759) :85-89