Authors: Wolfram Heinke Sven König Berthold Matyschok Bernd Stoffel Andreas Fiala Klaus Heinig
Publish Date: 2004/08/03
Volume: 37, Issue: 4, Pages: 488-496
Abstract
This paper reports on the investigation of steady wake effects in cascades An annular cascade rig where two stators having the same blade pitch can be circumferentially traversed relatively to each other is used to analyse the profile losses and the boundary layer development of the downstream stator for different circumferential positions of the upstream stator “clocking positions” Different measurement techniques are used such as threehole pressure probes and hot wire and surfacemounted hotfilm probes The results show a varying pressure loss coefficient of the downstream cascade S2 for different clocking positions of the upstream cascade S1 SP
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