Investigation of flow in pipe bends. Design of a special water separator

In wet-steam pipes, a state of equilibrium is established between coalescence, suspended droplet breakup, liquid splash against the pipe walls, wave generation and spray in the fluid wall-layer. This equilibrium, which depends on a large number of geometrical parameters, is upset by complex secondary flow effects, especially in duct bends. An experimental study of the aerodynamic flow configuration in a pipe circuit containing elbows and the observed tendency of these to collect water on their generatrixes in the plane of symmetry are described. A suitable water-trap design for such cases is suggested