The effect of curvature on the post-dryout dispersed flow in 90-degree circular bends is investigated theoretically and experimentally. The theoretical study concentrates on two basic aspects of the flow, i.e. bulk vapor flow and droplet dynamics. The former is analyzed by solving the conservation equations of the vapor phase whereas the latter is studied by a Lagrangian droplet trajectory model considering both thermal and turbulence effects. The experimental study deals with phase distribution of the flow by measuring local liquid fraction with an impedance probe. The results indicate that the curvature induced centrifugal force and the secondary flow significantly change the behavior of droplet dynamics and phase distribution. Droplets in the vapor stream reveal a general trend of centrifugal migration towards the outside of the bend and may even impinge directly on the wall. The effects of the secondary flow and turbulent dispersion are found to bring about a better circumferential transportation of liquid. Depending on the heat transfer condition, two different patterns of phase distribution are found. The first associated with film boiling is mainly dominated by phase separation. The second connected with the rewetting phenomenon is governed firstly by phase separation and then phase redistribution in the form of liquid inward reversal.