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Determination of slip ratios in air‐water two‐phase critical flow at high quality levels utilizing holographic techniques
Author(s) -
Lee Young J.,
Fourney Michael E.,
Moulton Ralph W.
Publication year - 1974
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690200202
Subject(s) - holography , optics , mechanics , two phase flow , materials science , flow (mathematics) , slip (aerodynamics) , holographic interferometry , inclined plane , laser , inlet , physics , thermodynamics , engineering , mechanical engineering , quantum mechanics
Holographic techniques employing a pulse ruby laser were used to measure the size and velocity of drops for air‐water two‐phase critical flow at quality levels above 0.95. The use of a large numerical aperture in the holographic recording system permitted diffraction limited resolution of the droplets. The measured slip ratio a long withthe observation that a very significant portion of the liquid phase was concentrated near the boundary layer at the exit plane indicates that a separated flow model describing two‐phase critical flow would represent the actual conditions to a better degree than the other models.