Summary
The problem treated relates to parallel multi-tube reactors, spray systems in dewaxing units, pipe burners for gaseous fuels, sprinkling systems for insecticide spraying, fire prevention and irrigation, ventilating systems in buildings and vehicular tunnels, distributing pipes in water filtering and aerating systems, etc., where it is required to ascertain under what conditions the discharge can be uniformly distributed over the manifold length. After a review of the case of laminar and turbulent flow through a pipe with a porous wall, the following questions have been treated in an analytical way: laminar flow in a pipe and laminar flow through branch pipes, or with discharge through orifices; turbulent flow in a pipe and laminar flow through branch pipes, or discharge through orifices.