𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Nonlinear simulations of solar rotation effects in supergranules

✍ Scribed by David H. Hathaway

Book ID
104646885
Publisher
Springer
Year
1982
Tongue
English
Weight
975 KB
Volume
77
Category
Article
ISSN
0038-0938

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✦ Synopsis

Nonlinear calculations for the three-dimensional and time dependent convective flow in a plane parallel layer of fluid are carried out with parameter values appropriate for supergranules on the Sun. A rotation vector is used which is tilted from the vertical to represent various latitudes. For the incompressible fluid used in this model the solar rotation produces turning motions sufficient to completely twist a fluid column in about one day. It is suggested that this effect will be greatly enhanced in a compressible fluid. The tilted rotation vector produces anisotropies and systematic Reynolds stresses which drive mean flows. The resulting flows produce a rotation rate which increases inward and a meridional circulation with poleward flow along the outer surface.

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