Instantaneous, three-component planar Doppler velocimetry using imaging fibre bundles

This paper describes a planar Doppler velocimetry (PDV) technique that is capable of measuring the three, instantaneous and time average components of velocity over two spatial dimensions using a single pair of signal and reference cameras. The three views required to obtain three-component velocity information are guided from the collection optics to a single imaging plane using flexible fibre imaging bundles. These are made up of a coherent array of single fibres and are combined at one end as the input plane to the measurement head. Measurements of the velocity field of a rotating disk are used in the development of the technique and initial results of the instantaneous velocity field of a jet are presented.

[1]  Gregory S Elliott,et al.  Molecular filter based planar Doppler velocimetry , 1999 .

[2]  Thomas J. Beutner,et al.  Planar Doppler Velocimetry in a Large-Scale Facility , 2000 .

[3]  Michael S. Reinath.  Doppler Global Velocimeter Development for the Large Wind Tunnels at Ames Research Center , 1997 .

[4]  J. Drummond,et al.  Application of absorption filter planar Doppler velocimetry to sonic and supersonic jets , 1996 .

[5]  F Meyers James,et al.  Instantaneous Doppler Global Velocimetry Measurements of a Rotor Wake: Lessons Learned , 1998 .

[6]  Mo Samimy,et al.  Review of Planar Multiple-Component Velocimetry in High-Speed Flows , 2000 .

[7]  Hiroshi Komine,et al.  Doppler Global Velocimetry: A New Way to Look at Velocity , 1991 .

[8]  J. T. Turner,et al.  Iodine absorption filters for Doppler global velocimetry , 1995 .

[9]  Ralph P. Tatam,et al.  Three-dimensional planar Doppler velocimetry using imaging fibre bundles , 2002 .

[10]  Joseph Norman Forkey.  Development and Demonstration of Filtered Rayleigh Scattering: a Laser Based Flow Diagnostic for Planar Measurement of Velocity, Temperature and Pressure. , 1996 .

[11]  Richard B. Miles,et al.  Flow field imaging through sharp-edged atomic and molecular 'notch' filters , 2001 .

[12]  Ralph P. Tatam,et al.  Development of extended field Doppler velocimetry for turbomachinery applications , 1997 .

[13]  G. B. Northam,et al.  Application of absorption filter-planar Doppler velocimetry to sonic and supersonic jets , 1995 .

[14]  I. Roehle,et al.  Three-dimensional Doppler Global Velocimetry in the flow of a fuel spray nozzle and in the wake region of a car , 1996 .

[15]  F Meyers James.  Generation of Particles and Seeding , 1991 .

[16]  Hiroshi Komine,et al.  Real-time, Doppler global velocimetry , 1990 .

[17]  Christian Willert,et al.  Recent developments and applications of quantitative laser light sheet measuring techniques in turbomachinery components , 2000 .