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Author: J. B. Abbiss Publisher: ISBN: Category : Laser Doppler velocimeter Languages : en Pages : 22
Book Description
Experiments with a three-component laser anemometer on the wake and vortex structure behind a model wing at incidence in a 4ft x 3ft subsonic test section are described. Three colours from the output spectrum of an argon-ion laser were used for the three Doppler-difference arrangements. The complete optical system operated in backscatter and was mounted on a single table which could be translated in three orthogonal directions. An integrated data acquisition and reduction system was used incorporating a photon correlator and a Honeywell 6/36 minicomputer. The output data consisted of mean-velocity and turbulence-intensity values for all three components at each measurement point. From these data, the mean-velocity components in the directions of the conventional tunnel axes could be derived by means of a linear transformation. However, the measured turbulence intensities do not yield the turbulence intensities for these components without additional assumptions or supplementary information. (Author).
Author: J. B. Abbiss Publisher: ISBN: Category : Laser Doppler velocimeter Languages : en Pages : 22
Book Description
Experiments with a three-component laser anemometer on the wake and vortex structure behind a model wing at incidence in a 4ft x 3ft subsonic test section are described. Three colours from the output spectrum of an argon-ion laser were used for the three Doppler-difference arrangements. The complete optical system operated in backscatter and was mounted on a single table which could be translated in three orthogonal directions. An integrated data acquisition and reduction system was used incorporating a photon correlator and a Honeywell 6/36 minicomputer. The output data consisted of mean-velocity and turbulence-intensity values for all three components at each measurement point. From these data, the mean-velocity components in the directions of the conventional tunnel axes could be derived by means of a linear transformation. However, the measured turbulence intensities do not yield the turbulence intensities for these components without additional assumptions or supplementary information. (Author).
Author: J. B. Abbiss
Author: J. B. Abbiss
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Author: James N. Hallock
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