Frictional resistance of low Reynolds number flows destabilised by heat transfer

A. J. Addlesee

Research output: Contribution to journalArticle

Abstract

Values of friction factor for flow in cooled vertical tubes have been obtained from experiments with a natural circulation system. The working fluids were water and water-ethylene glycol mixtures. The Reynolds number was varied between 25 and 6500 and the Rayleigh number was independently varied between limits of 180 and 6500. The friction factor, which was correlated with the Reynolds number, indicated flow resistance several times greater than that predicted by isothermal friction laws. © 1980.

Original languageEnglish
Pages (from-to)249-255
Number of pages7
JournalLetters in Heat and Mass Transfer
Volume7
Issue number4
Publication statusPublished - Jul 1980

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