Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If You Use a Screen Reader

This content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.

Kinematic Dynamos Driven by Thermal-Wind Flows

Graeme R. Sarson
Proceedings: Mathematical, Physical and Engineering Sciences
Vol. 459, No. 2033 (May 8, 2003), pp. 1241-1259
Published by: Royal Society
Stable URL: http://www.jstor.org/stable/3560002
Page Count: 19
  • Read Online (Free)
  • Cite this Item
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Kinematic Dynamos Driven by Thermal-Wind Flows
Preview not available

Abstract

Most kinematic dynamos have been constructed without reference to the magnetohydrodynamics applicable to the geodynamo; none of the simple cases in the literature are consistent with the magnetostrophic regime expected in the Earth's core. A simple flow that can be driven by the thermal-wind term present in this regime is constructed. This flow is shown to act as a dynamo, via direct three-dimensional calculations and via αω-calculations in the axisymmetric Braginsky limit. The temperature field and heat-source distribution necessary to drive this velocity are considered; although artificial, these forms could be of use in the construction of laboratory dynamos.

Page Thumbnails

  • Thumbnail: Page 
1241
    1241
  • Thumbnail: Page 
1242
    1242
  • Thumbnail: Page 
1243
    1243
  • Thumbnail: Page 
1244
    1244
  • Thumbnail: Page 
1245
    1245
  • Thumbnail: Page 
1246
    1246
  • Thumbnail: Page 
1247
    1247
  • Thumbnail: Page 
1248
    1248
  • Thumbnail: Page 
1249
    1249
  • Thumbnail: Page 
1250
    1250
  • Thumbnail: Page 
1251
    1251
  • Thumbnail: Page 
1252
    1252
  • Thumbnail: Page 
1253
    1253
  • Thumbnail: Page 
1254
    1254
  • Thumbnail: Page 
1255
    1255
  • Thumbnail: Page 
1256
    1256
  • Thumbnail: Page 
1257
    1257
  • Thumbnail: Page 
1258
    1258
  • Thumbnail: Page 
1259
    1259