Discharge Characteristics of Low-Density Gas Flow through Parallel Plate Channel with Narrow Gap

Low-density choked flow through a parallel plate channel with a narrow gap is studied experimentally for a wide range of Reynolds numbers. In the region from continuum flow to slip flow, the choked flow is analyzed by one-dimensional flow approximation based on the integrated boundary layer equation...

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Veröffentlicht in:JSME International Journal Series B Fluids and Thermal Engineering 1996/08/15, Vol.39(3), pp.470-474
Hauptverfasser: TAGUCHI, Toshio, HIRAI, Etsuro, KATO, Mitsuo, MIYAMOTO, Masahide, KATOH, Yasuo, NAGATA, Tetsuya
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Sprache:eng
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Zusammenfassung:Low-density choked flow through a parallel plate channel with a narrow gap is studied experimentally for a wide range of Reynolds numbers. In the region from continuum flow to slip flow, the choked flow is analyzed by one-dimensional flow approximation based on the integrated boundary layer equations, taking into account the slip at the channel walls. The calculated discharge coefficients and pressure distributions agree well with the experimental results for a wide range of Reynolds numbers, including the slip flow region. A nondimensional correlation equation of the discharge coefficient is proposed as a function of Rehs/l for Rehs/l
ISSN:1340-8054
1347-5371
DOI:10.1299/jsmeb.39.470