Wm. Konig et al., IMPROVED BLADE PROFILE LOSS AND DEVIATION ANGLE MODELS FOR ADVANCED TRANSONIC COMPRESSOR BLADINGS .2. A MODEL FOR SUPERSONIC-FLOW, Journal of turbomachinery, 118(1), 1996, pp. 81-87
New binding concepts as used in,modern transonic axial-flow compressor
s require, improved loss and deviation angle correlations. The new mod
el presented in this paper incorporates several elements and treats bl
ade-row flows having subsonic and supersonic inlet conditions separate
ly. The second part of the present report focuses on the Extension of
a well-known correlation for cascade losses at supersonic inlet flows.
It was originally established for DCA bladings and is now modified to
reflect the flow situation in blade rows having low-cambered, arbitra
rily designed blades including precompression blades. Finally, the ste
ady loss increase from subsonic to supersonic inlet-flow velocities de
monstrates the matched performance of the different correlations of th
e new model.