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Bernhard Jonathan Sattler, John Friesen, Andrea Tundis and Peter F. Pelz
Current challenges, such as climate change or military conflicts, show the great importance of urban supply infrastructures. In this context, an open question is how different scenarios and crises can be studied in silico to assess the interaction betwee...
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Robin M. Robrecht and Peter F. Pelz
Grooved liquid annular seals have a significant influence on the design of turbomachines. Corresponding lubrication film models need to account for the different friction behavior of the grooves compared to plain seals. However, there is a lack of reliab...
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Johannes Brötz, Christian Schänzle and Peter F. Pelz
The efficiency definition allows us to compare two machines with each other. In general, the efficiency is defined as the ratio of usable power to the required power. This raises the question: what is the usable power? Most engineers discuss efficiency o...
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Katharina Henn, John Friesen, Jakob Hartig and Peter F. Pelz
Dissipative structures known from non-equilibrium thermodynamics can form patterns. Cities are regarded as open, dissipative structures due to their self-organisation and thus in theory are also capable of pattern formation. In a first step to understand...
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John Friesen, Lea Rausch, Peter F. Pelz and Johannes Fürnkranz
Currently, more than half of the world?s population lives in cities. Out of these more than four billion people, almost one quarter live in slums or informal settlements. In order to improve living conditions and provide possible solutions for the major ...
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Peter F. Pelz, Paul Taubert and Ferdinand-J. Cloos
This paper models the kinematics of the vortex system of an encased axial turbomachine at part load and overload applying analytical methods. Thus far, the influence of the casing and the tip clearance on the kinematics have been solved separately. The v...
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Michael Ahlheim, Oliver Frör, Jing Luo, Sonna Pelz and Tong Jiang
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