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Tobias Haeckel, Dominik Paul, Sebastian Leichtfuß, Heinz-Peter Schiffer and Werner Eißler
The surge limit of centrifugal compressors is a key parameter in the design process of modern turbochargers. Numerical methods like steady-state simulations are state-of-the-art methods for predicting the performance of the centrifugal compressor. In con...
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Johannes Ratz, Sebastian Leichtfuß, Maximilian Beck, Heinz-Peter Schiffer and Friedrich Fröhlig
Currently, 3D-CFD design optimization of centrifugal compressors in terms of the surge margin is one major unresolved issue. On that account, this paper introduces a new kind of objective function. The objective function is based on local flow parameters...
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Johannes Bühler, Sebastian Leichtfuß, Heinz-Peter Schiffer, Thomas Lischer and Simon Raabe
Compressor surge has been investigated and predicted since the early days of turbomachinery research. Experimental testing of turbomachinery applications is still needed to determine whether stable compressor operation is possible in the expected applica...
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Sebastian Leichtfuß, Johannes Bühler, Heinz-Peter Schiffer, Patrick Peters and Michael Hanna
This paper provides an investigation of a casing treatment (CT) approach for pressure ratio improvements of centrifugal compressors between peak efficiency and surge. Results were experimentally verified for a variety of automotive turbocharger compresso...
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