Simultaneous Measurement of Flow Velocities in Multipoint by the Laser Doppler Velocimeter

  • Noboru Nakatani
  • Ryoichi Yorisue
  • Tomoharu Yamada


An important shortcoming of the conventional laser Doppler method is that it furnishes the instantaneous velocity at a single point in the fluid. To obtain the complete flow pattern, the experiment has to be repeated for different regions of the flow field (1) ~ (6).


Optical System Unsteady Flow Doppler Signal Optical Path Difference Axial Mode 
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  1. (1).
    Nakatani, N., Ono, A. and Yamada, T.: Proc. of the 2nd Inter. JSME Symposium Fluid Machinery and Fluidics, 3 (1972), 141, Tokyo, JSMEGoogle Scholar
  2. (2).
    Nakatani, N., Fujiwara, K., Morimoto, S., Ono, A., and Yamada, T.: Fluidics Quarterly 5-3 (1973), 49Google Scholar
  3. (3).
    Nakatani, N., Yatomi, S. and Yamada, T.: Fluidics Quarterly, 7-1 (1974), 47ADSGoogle Scholar
  4. (4).
    Nakatani, N., Hanioka, N., Konishi, T. and Yamada, T.: Proc. of the 10th Fluidics Symposium (1975), 105, Tokyo SICEGoogle Scholar
  5. (5).
    Nakatani, N., Konishi, T., Yorisue, R. and Yamada, T.: Proc. of 1977 Joint Gas Turbine Congress, (1977), 461, Tokyo, GTSJ., JSME and ASMEGoogle Scholar
  6. (6).
    Nakatani, N., Yorisue, R. and Yamada, T.: Tech. Rep. of the Osaka Univ., 27-1382 (1977), 463Google Scholar

Copyright information

© Proceedings of the Dynamic Flow Conference 1978

Authors and Affiliations

  • Noboru Nakatani
    • 1
  • Ryoichi Yorisue
    • 1
  • Tomoharu Yamada
    • 1
  1. 1.Department of Precision Engineering, Faculty of EngineeringOsaka UniversityYamada-Kami, Suita, OsakaJapan

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