Abstract: The research and development
of turbomachines requires the understanding of the complex three
dimensional flow through blade passages including the boundary
layers. The non-contact laser anemometry provides the necessary
information concerning the velocity and turbulence components
even when rotor operates at high rotational speed. This paper
mainly reviews systems of laser anemometry having been applied
successfully to turbomachinery over last ten years. The
characteristic parameters of each system including Laser-Dopplar
Anemometry (LDA) and Laser Two-focus Velocimeter (L2FV) and
typical examples are shown. Finally, some conclusions are drawn
considering the advantages and disadvantages of LDA and L2FA for
this special application.
Key words:
Laser application Laser technique
Laser anemometry Turbomachinery
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