Two-phase gas/liquid flow pressure loss in bends

The state of the art with respect to the prediction of the pressure loss in bends in the case of fluiddynamic subcritical two-phase flow with Newtonia n liquid phase behaviour is presented. In analysing the structure and model parameters included in the bend pressure loss correlations doubts arise on the predictive quality and general validity. Some predictions of the corre lations by Chisholm, Sookprasong and Paliwoda as relative most complete fro m a theoretical standpoint, are discussed. The use of Chisholm's model is p rovisionally recommended.