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Time varying behavior of cocurrent gas-liquid flows in packed beds

✍ Scribed by J.A. Helwick; P.O. Dillon; M.J. McCready

Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
689 KB
Volume
47
Category
Article
ISSN
0009-2509

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✦ Synopsis

The time-varying fluid mechanics of the pulse flow regime are studied by the use of continuous pressure measurements. It is found that pulses can occur either regularly or intermittently and the time period between pulses scales inversely with a modified Reynolds number. A simple physical basis for this scaling is suggested by a one-dimensional map. The results emphasize the importance of knowing the time scale of pulses and suggest that it is worthwhile to look for similar scalings for other intermittent flow phenomena such as slugs in horizontal gas-liquid flows.

πŸ“œ SIMILAR VOLUMES

Cocurrent gasβ€”liquid flow in packed colu
Cocurrent gasβ€”liquid flow in packed columns
✍ B.E.T. Hutton; L.S. Leung πŸ“‚ Article πŸ“… 1974 πŸ› Elsevier Science 🌐 English βš– 396 KB

A model is proposed for cocurrent gas liquid flow through a packed bed. For a given packing, gas and liquid flow rates, we proposed that (i) liquid holdup is a function only of pressure gradient and liquid flow rate and (ii) pressure gradient is only a function of liquid holdup and gas flow rate. Eq