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Conditions for sonic transitions in a scrape-off layer (SOL) are discussed and the importance of particle and momentum sources, temperature gradients, area change and viscous effects is shown. Supersonic boundary conditions and their implications are considered. The numerical model EDGE1D is used to produce a series of sonic transitions over a range of variables and the results obtained are summarised.

Additional information

Authors: HARBOUR P J, JET Joint Undertaking, Abingdon, Oxon. (GB);LOARTE A, JET Joint Undertaking, Abingdon, Oxon. (GB)
Bibliographic Reference: Report: JET-P(94)05 EN (1994) 10 pp.
Availability: Available from the Publications Officer, JET Joint Undertaking, Abingdon, Oxon. OX14 3EA (GB)
Record Number: 199410616 / Last updated on: 1994-11-28
Original language: en
Available languages: en
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