Pressure losses caused by area changes in a single-channel flow under two-phase flow conditions

Experimental data obtained on plate and smooth blockages under two-phase flow conditions in a square vertical channel have been presented and analysed using the Janssen-Kervinen and momentum-energy models. The vena contracta coefficients obtained for plate blockages using these models agree well up...

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Veröffentlicht in:International journal of multiphase flow 1989, Vol.15 (1), p.51-64
Hauptverfasser: Tapucu, A., Teyssedou, A., Troche, N., Merilo, M.
Format: Artikel
Sprache:eng
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Zusammenfassung:Experimental data obtained on plate and smooth blockages under two-phase flow conditions in a square vertical channel have been presented and analysed using the Janssen-Kervinen and momentum-energy models. The vena contracta coefficients obtained for plate blockages using these models agree well up to about 30% void fraction. It is observed that the contraction coefficients for two-phase flow differ somewhat from those for single-phase flows. The irreversible pressure loss coefficients for plate and smooth blockages depend on blockage severity and void fraction.
ISSN:0301-9322
1879-3533
DOI:10.1016/0301-9322(89)90085-2