Modeling of the viscous effects in fluids contained within a narrow pipe system suppilied by a jet

Abstract

Industrial robots used to spray-paint vehicles use air to place the paint onto the object. The paint is let out at the end of the robot arm, while a stream of air is used to lead the paint towards its desired location. The air supplied to the system comes from a control unit consisting of a high pressure chamber separated from a pipe system by a valve. The valves position as a function of time is preset according to the users desires. Adjustments are then made according to measurements taken of the volume flow through the system. We will regard the ACU as a system consisting of two separate subsystems. The two subsystems are the pipe system supplying the air to the robots tool and the measuring arrangement used to obtain readings of the flow.