Supersonic Flow Field Investigation Using a Fiber-optic based Doppler Global Velocimeter

Author:: Cavone, Angelo A.
Published:: May 2006.
Physical Description:: 1 electronic document
Additional Creators:: Fletcher, Mark T., Lee, Joseph W., AscencionGuerreroViramontes, J., and Meyers, James F.

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Summary:

A three-component fiber-optic based Doppler Global Velocimeter was constructed, evaluated and used to measure shock structures about a low-sonic boom model in a Mach 2 flow. The system was designed to have maximum flexibility in its ability to measure flows with restricted optical access and in various facilities. System layout is described along with techniques developed for production supersonic testing. System evaluation in the Unitary Plan Wind Tunnel showed a common acceptance angle of f4 among the three views with velocity measurement resolutions comparable with free-space systems. Flow field measurements of shock structures above a flat plate with an attached ellipsoid-cylinder store and a low-sonic boom model are presented to demonstrate the capabilities of the system during production testing.

Other Subject(s):

Fluid Mechanics and Thermodynamics

Collection:

NASA Technical Reports Server (NTRS) Collection.

Note:

Document ID: 20060023983.
Paper -1019.
13th International Symposium on Applications of Laser Techniques to Fluid Mechanics; 26-29 Jun. 2006; Lisbon; Portugal.

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