5Kai U Ziegler,Heinz E Gallus,Reinhard Niehuis.A Study on Impeller-Diffuser Interaction-Part 1:Influence on the Performance[J].ASME Journal of Turbomachinery,2003,125:173-182.
6Kai U Ziegler,Heinz E Gallus,Reinhard Niehuis.A Study on Impeller-Diffuser Interaction-Part 2:Detailed Flow Analysis[J].ASME Journal of Turbomachinery,2003,125:183-192.
7Guile R N,,Hilding W E.Investigation of a free-vortex aerodynamic window. AIAA Paper 75～122 . 1975
8Stephens T.Axial-Flow Aerodynamic Window for High energy Laser. United States Patent,4777426 . 1988
9Satake T,Sakai M,Watanabe T,et al.Experimental investigation of supersonic free-vortex flow with large asymmetry for aerodynamic laser windows. Japanese Journal of Applied Physics . 1998
10W. Masuda,M. Yuasa.Experim entstudy ofa free-vortex aerodynam ic w indow. J. dePhysique . 1980
