Interfacial shear modeling and flow predictions for internal film condesation flows

Document Type

Conference Proceeding

Publication Date



Internal flow of pure vapor experiencing film condesation on the walls of a straight duct is studied. The commonly occuring case of turbulent (or laminar) vapor flow in the core and laminar flow of the liquid condensate-with or without waves on the interface-is emphasized. We propose and implement a new first principle methodolgy which model interfacial shear with the help of reliable experimental data on heat transfer rates. Other details of the flow are predicted with the help of this model. These predictions are shown to be in agreement with relevant experimental data. Correlations for film thickness and heat transfer rates are also given.

Publisher's Statement

© 1992 ASME. Publisher’s version of record: https://ntrs.nasa.gov/search.jsp?R=19950063615

Publication Title

Proceedings of Engineering Foundation Conference