Droplet entrainment in two-phase flow under reduced gravity

Viatcheslav Naoumov, Masood Parang, Christopher Shough, Joseph Tipton

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

Liquid droplets entrained in concurrent gas flows were investigated under reduced gravity condition produced by parabolic flight paths onboard a NASA C-9 research aircrafts. Reduced gravity results were compared with terrestrial ones. Microgravity tests were performed at two water flow rates,. The results shows that pressure drop in the test section is higher under reduced gravity as compared to normal gravity. Preliminary results indicate that for horizontal or slightly inclined channels in normal gravity, gravity plays a stabilizing role. It is shown that critical gas velocities characterizing the entrainment onset for reduced gravity tests are lower than the corresponding normal gravity results at the same water flow rate.

Original languageEnglish
Title of host publicationCollection of Technical Papers - 45th AIAA Aerospace Sciences Meeting
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
Pages9220-9229
Number of pages10
ISBN (Print)1563478900, 9781563478901
DOIs
StatePublished - 2007
Externally publishedYes
Event45th AIAA Aerospace Sciences Meeting 2007 - Reno, NV, United States
Duration: Jan 8 2007Jan 11 2007

Publication series

NameCollection of Technical Papers - 45th AIAA Aerospace Sciences Meeting
Volume13

Conference

Conference45th AIAA Aerospace Sciences Meeting 2007
Country/TerritoryUnited States
CityReno, NV
Period01/8/0701/11/07

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