Flow in Turbomachinery II



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Basic Information

Bachelor, Master


Turbomachines have an important function in many parts of our lives. They are engines of almost all modern aircraft, used in power generation or are important components in systems of the process industry. In this context, the requirements in terms of efficiency, emissions and performance are constantly increasing. In order to meet these challenges, a deep understanding of the thermodynamics, aerodynamics and structural mechanics of turbomachinery is required.

In addition to the design of the thermodynamic circuit process, the aerodynamic design of the individual components is essential for the development of efficient turbomachines. Based on the lecture "Flow in Turbomachinery I", this course aims to provide a deeper understanding of turbomachinery aerodynamics. The focus is on supersonic and transonic compressors as well as the aerodynamics of centrifugal compressors.

At the beginning of the course the basics of gas dynamics will be taught and essential differences between subsonic and supersonic flows will be pointed out. In particular, the propagation of disturbances in compressors, isentropic state changes of transonic flows as well as the phenomenon of compression shocks will be discussed. Following these gas dynamic fundamentals, the functioning of transonic axial compressors, which are an essential part of modern aircraft engines, will be discussed. The previously taught basics of transonic flow will be taken up and deepened by practical examples. In the second part of the course, the aerodynamics of centrifugal compressors are discussed and the resulting characteristics of the flow deceleration are explained.



  • Gas dynamics
  • Subsonic and supersonic flows
  • Propagation of disturbances
  • State of change of transonic flows
  • Compression shocks
  • Transonic axial compressors
  • Aerodynamic of centrifugal compressors
  • Flow deceleration

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