Turbine

A device for converting the flow of a fluid (air, steam, water, or hot gases) into mechanical motion.

A machine that converts the kinetic energy of a moving fluid to mechanical power by the impulse or reaction of the fluid with a series of blades arrayed about the circumference of a wheel or cylinder.

A machine for converting the heat energy in steam or high temperature gas into mechanical energy. In a turbine, a high velocity flow of steam or gas passes through successive rows of radial blades fastened to a central shaft.

A machine for generating rotary mechanical power from the energy of a stream of fluid (such as water, steam, or hot gas). Turbines convert the kinetic energy of fluids to mechanical energy through the principles of impulse and reaction, or a mixture of the two.