Microgravity effects on the rising velocity of bubbles and slugs in vertical pipes of good and poor wettability

Authors
Iguchi, M Terauchi, Y
Citation
M. Iguchi et Y. Terauchi, Microgravity effects on the rising velocity of bubbles and slugs in vertical pipes of good and poor wettability, INT J MULT, 27(12), 2001, pp. 2189-2198
Citations number
7
Categorie Soggetti
Mechanical Engineering
Journal title
INTERNATIONAL JOURNAL OF MULTIPHASE FLOW
ISSN journal
03019322 → ACNP
Volume
27
Issue
12
Year of publication
2001
Pages
2189 - 2198
Database
ISI
SICI code
0301-9322(200112)27:12<2189:MEOTRV>2.0.ZU;2-G
Abstract
Bubbles and slugs rising in vertical pipes of good and poor wettability wer e observed with a high-speed video camera in normal gravity as well as in m icrogravity. The wettability of the pipe did not affect the mean rising vel ocity of bubbles in microgravity. The same was true for the mean rising vel ocity of slugs in microgravity. An empirical relation was derived for the m ean rising velocity of bubbles and slugs in mirogravity as a function of th e superficial velocities of gas and liquid. (C) 2001 Elsevier Science Ltd. All rights reserved.