Abstract:
Basically pumps are turbo machines that consume work and impart energy to the fluid. It is used various applications such as pumping water from wells, pond filtering and aeration, in the car industry for water-cooling and fuel injection, in the energy industry for pumping oil and natural gas or for operating cooling towers. Especially centrifugal pumps which belongs to the category of non positive displacement [output fluctuates with the speed of rotation of impeller] are used to transport fluids by the conversion of rotational kinetic energy to the hydrodynamic energy of the fluid flow. The rotational energy typically comes from an engine or electric motor. The fluid enters the pump impeller along or near to the rotating axis and is accelerated by the impeller, flowing radially outward into a diffuser or volute chamber (casing), from where it exits. They are used in various applications such as water, petroleum, sewage.

As mechanical engineers, we aim to solve the few of the above problems whilst preserving the advantages of a centrifugal pump simply because of the simple and efficient working principle involved, keeping in mind on cutting down on the manufacturing cost as well as simplifying the design of the volute casing.In order to meet the above specified requirements, a bladeless pump which works on the theory that real fluids have viscosity which exerts a drag force on the disc causing the fluid to exit in a direction perpendicular to axis of rotation after gaining kinetic energy and thus achieving the objective of transporting high viscous fluids efficiently, when compared to a centrifugal pump. The scope of this pump can be further extended to a bladeless rugged turbine with high efficiency .The turbine can work on the same principle as the pump, only difference is that a working fluid(compressed air) drives the blade which in turn drives the shaft and can be used to generate electricity when coupled with an electric motor

Keywords: Boundary layer effect, Centrifugal Force, Viscosity, Skin Friction Drag.