ABSTRACT
In the previous chapters, attention was focused on understanding and estimating the performance of turbomachines. In a sense, the emphasis was on what various machines do, as opposed to how they do it. This chapter begins with the consideration of the details of the flow processes within turbomachines. The essential features are the interaction of the flowing fluid with a moving blade row and the accompanying interchanges of momentum, energy, and pressure within the fluid. First, consideration is given to the geometry of blading and the vector relationships between fluid and blade velocities. Then, the fundamental equations describing rotor/fluid energy transfer are developed. Next, certain limitations on fluid diffusion are considered. Finally, preliminary application of the principles to design and performance analysis is illustrated. Later chapters then add both breadth and depth to design and performance prediction methods.
