Intertube bridge and rivulet liquid flows
L.I. Maltsev, Yu.S. Podzharov
Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia
Keywords: liquid bridges, rivulets, gravity, capillary forces, centrifugal forces, cross-sectional area, contact area
Abstract
A model of a rivulet formed on the coils of a tubular heat exchanger has been developed. The cross-sectional shape of the rivulet is determined taking into account the forces of gravity of liquid, the forces of surface tension, and centrifugal forces. The equations for the coordinates of the free boundary points of the rivulet are presented in the integral form based on the analytical solution of the problem. The cross-sectional areas of rivulet and liquid bridge are compared, as well as the areas of their contacts with the working tubes.
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