Fans of pumps rotates as mechanical forms and that rotates the water and tangential forces act on surface of water therefore water get velocity ( hydraulic engineering) and flow outward at high speed

A pump is a device which converts mechanical energy into hydraulic energy.

Explanation:

Mechanical energy:
Mechanical energy is the energy possessed by an object due to its motion or position. It can be in the form of kinetic energy (energy of motion) or potential energy (energy of position). In the context of a pump, mechanical energy refers to the energy generated by a motor or an engine that drives the pump.

Hydraulic energy:
Hydraulic energy refers to the energy possessed by a fluid under pressure. It is the energy that allows a fluid to perform work or exert a force. In the context of a pump, hydraulic energy is the energy transferred to the fluid being pumped, which allows it to flow or perform tasks such as lifting, pushing, or rotating.

Conversion process:
A pump operates by using mechanical energy to transfer hydraulic energy to a fluid. The process can be explained as follows:

1. Mechanical energy input: The pump is powered by a motor or an engine that generates mechanical energy. This energy is transferred to the pump through a rotating shaft or other mechanical components.

2. Impeller action: The mechanical energy is then used to drive an impeller, which is a rotating component with curved blades. As the impeller rotates, it creates a centrifugal force that pushes the fluid towards the outer edges of the impeller.

3. Fluid suction: The centrifugal force created by the impeller causes the fluid to be drawn into the pump through an inlet pipe or opening. This is known as suction.

4. Fluid acceleration: As the fluid enters the pump, it is accelerated by the rotating impeller blades. This acceleration increases the kinetic energy of the fluid, converting some of the mechanical energy into hydraulic energy.

5. Fluid discharge: The fluid then exits the pump through a discharge pipe or opening, where it can be used for various purposes such as irrigation, water supply, or hydraulic machinery.

Conclusion:
In summary, a pump converts mechanical energy into hydraulic energy by using a rotating impeller to accelerate and transfer fluid under pressure. This process allows the pump to perform tasks such as lifting, pushing, or circulating fluids in various applications.