Flow-tube dynamics and coronal holes

Details Flow-tube dynamics and coronal holes Flow-tube dynamics and coronal holes

May 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983soph...85...93s&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 85, May 1983, p. 93-96. Sponsorship: Natural Sciences and Engineering Research Council.

Computer Science

Numerical Analysis

1

Coronal Holes, Magnetohydrodynamic Flow, Plasma Dynamics, Stellar Models, Numerical Analysis, Solar Wind Velocity

Scientific paper

The author reexamines the well-known polytropic flow-tube model of the expanding solar corona, and finds that as the divergence of the flow tube increases the expansion speed increases throughout the flow, over a stated parameter range. Corresponding to a specified flow-tube geometry the terminal speed of the fluid may be far in excess of the value corresponding to purely spherically symmetric flow. The implications of the results for the modelling of high-speed streams emanating from coronal holes are discussed.

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