CLASSIFICATION OF FLOODING DATA ACCORDING TO TYPE OF TUBE-END GEOMETRY

Abstract

Flooding data are partitioned according to type of entrance and exit geometry by applying the entropy minimax principle. It is found that the effect of exit geometry on flooding is great in the low liquid velocity region, while that of entrance geometry is great in the high liquid velocity region. Two flooding correlations having second order polynomial form are suggested with + 20% uncertainty bands for smooth exit and sharp exit geometries, respectively. It is found that flooding gas velocities predicted by most previous correlations are close to those predicted by the smooth exit correlation.