Open AccessAir Entrainment through Free Surface: A Study of Scale Effects
Author(s) -
Ashabul Hoque
Publication year - 1970
Publication title -
bangladesh journal of scientific and industrial research
Language(s) - English
Resource type - Journals
eISSN - 2224-7157
pISSN - 0304-9809
DOI - 10.3329/bjsir.v41i3.291
Subject(s) - froude number , air entrainment , entrainment (biomusicology) , free surface , mechanics , meteorology , scale (ratio) , environmental science , geology , physics , atmospheric sciences , flow (mathematics) , quantum mechanics , rhythm , acoustics
This study investigates air entrainment through free surface both in vertical circular plunging jets and plunging breakers. Three scale modesldata of void fraction for identical froude numbers measured by Hoque and Chanson et al. have been used to investigate the scale effects. The results highlight the significant scale effects when the weber number is less than 1000 in vertical circular plunging jets, whereas it may be significant in the laboratory when the wave height is less than 0.30 m.
Bangladesh J. Sci. Ind. Res. 41(3-4), 207-218, 2006