Turbomachinery refers to machines that transfer energy between a fluid and a rotating component. This category includes devices like turbines, which extract energy from flowing fluids, and compressors, which increase the pressure of gases. These machines are essential in various applications, including power generation, aviation, and HVAC systems. The design and operation of turbomachinery involve principles of fluid dynamics and thermodynamics. Engineers focus on optimizing performance, efficiency, and reliability. Common examples of turbomachinery include steam turbines, gas turbines, and centrifugal compressors, all of which play crucial roles in modern technology and industry.