A new unified model is proposed for the transition from annular to intermittent flow patterns for the entire range of pipe inclination angles. Experimentally, it has been observed that the transition from annular flow takes place at a critical void fraction. To obtain a transition boundary equation, conservation of momentum equations for gas and the liquid film are combined and solved with the critical void fraction. The new model captures the correct transition characteristics, agrees favorably with experimental flow pattern data, and performs the best when compared with previous transition models.


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    Title :

    Investigation of transition from annular to intermittent flow in pipes


    Contributors:
    Kaya, A.S. (author) / Chen, X.T. (author) / Sarica, C. (author) / Brill, J.P. (author)


    Publication date :

    1999


    Size :

    Seiten


    Type of media :

    Conference paper


    Type of material :

    Storage medium


    Language :

    English




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