A model for the laminar annular film condensation is derived.
Momentum mass fluxes in the liquid film neglected in a manner consistent with the Nusselt film condensation theory
Theoretical study of laminar film condensation
of flowing vapour International Journal of Heat and Mass Transfer 9: 581-591 (1966).
Alkam, "Transient film condensation
on a vertical plate imbedded in porous medium," Transport in Porous Media, vol.
Film condensation of vapour flowing inside a vertical tube and between parallel plates was studied in .
Study  develops a numerical model of laminar film condensation from a downward-flowing steam-air mixture onto a horizontal circular tube.
Three decades ago, the author presented a general correlation for heat transfer during film condensation inside plain tubes (Shah 1979).
Equation 9 is the Nusselt equation for laminar film condensation in vertical tubes; the constant has been increased by 20% as recommended by McAdams (1954) on the basis of comparison with test data.
Over three decades ago, the author had presented a general correlation for heat transfer during film condensation
inside plain tubes (Shah 1979).
Important two-phase behaviors were observed in the experimentation of condensation in the BPHEs; e.g., when the temperature differences were not large, film condensation
proved to be the dominant characteristic when determining heat transfer correlations.