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Gas flow across a wet screen - Analogy to a relief valve with hysteresisThe flow of gas through a wet fine-mesh screen is analyzed in terms of the capillary forces of the liquid wetting the screen and the pressure difference across the screen thickness driving the gas flow. Several different types of time-dependent flow are shown to be possible. The most interesting type is one in which the pressure difference opens small channels in the liquid, which are then closed rapidly by the wetting action of the liquid. The opening and closing exhibit hysteresis, and the flow is highly oscillatory.
Document ID
19840060759
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Nachman, A.
(Southwest Research Inst. San Antonio, TX, United States)
Dodge, F. T.
(Southwest Research Institute San Antonio, TX, United States)
Date Acquired
August 12, 2013
Publication Date
August 1, 1983
Publication Information
Publication: Applied Mathematical Modelling
Volume: 7
ISSN: 0307-904X
Subject Category
Fluid Mechanics And Heat Transfer
Accession Number
84A43546
Funding Number(s)
CONTRACT_GRANT: NAS3-22664
Distribution Limits
Public
Copyright
Other

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