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Flow-tube dynamics and coronal holes

โœ Scribed by D. Summers

Book ID
104642231
Publisher
Springer
Year
1983
Tongue
English
Weight
195 KB
Volume
85
Category
Article
ISSN
0038-0938

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โœฆ Synopsis

We reexamine the well-known polytropic flow-tube model of the expanding solar corona, and find 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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