Archivio Istituzionale della RicercaA correlation has been developed for the turbulent friction factorof a circular channel with a helical rib roughness of rectangular cross section, which is relevant to the central channel (hole) in twochannel cablelnconduit conductors. The correlation is based on data we measured on a pipe with three different types of helix. It relates f with the Reynolds number Re und with suitable dimciisionlcss combinations of all relevant geometrical parameters of the problem, i.e., hole diameter and iiclix gap and thickness. A limited comparison with actual (QUELL) conductor data shows good agreement. © 2000 IEEE.
Friction factor correlation with application to the central cooling channel of cableinconduit superconductors for fusion magnets / Zanino, R., Santagati, P., Savoldi, L.. - In: IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY. - ISSN 1051-8223. - 10:1(2000), p. 10661069.
Friction factor correlation with application to the central cooling channel of cableinconduit superconductors for fusion magnets
Savoldi L.
2000
Abstract
A correlation has been developed for the turbulent friction factorof a circular channel with a helical rib roughness of rectangular cross section, which is relevant to the central channel (hole) in twochannel cablelnconduit conductors. The correlation is based on data we measured on a pipe with three different types of helix. It relates f with the Reynolds number Re und with suitable dimciisionlcss combinations of all relevant geometrical parameters of the problem, i.e., hole diameter and iiclix gap and thickness. A limited comparison with actual (QUELL) conductor data shows good agreement. © 2000 IEEE.
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https://hdl.handle.net/11583/3015135