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Measurements, visualization and interpretation of 3-D flows application within base flows

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2 Author(s)
C. Berner ; French-German Res. Inst., Saint-Louis, France ; P. Wey

Experimental investigations of the flow field in the near-wake of axisymmetric afterbodies at an angle of attack of 5 degrees are reported. Models consists of a cylindrical afterbody and a conical boat tail. Measurements were performed by means of a 3-D frequency-shifted laser Doppler velocimeter at a free stream Mach number of 0.5. The tremendous increase of quantitative information obtained with this diagnostic technique raises the problem of reducing and displaying the data in a way that avoids large amounts of numbers and curves that are not easy to interpret. An attempt is made to visualize and to describe velocity characteristics in the form of a 3-D graphic representation.<>

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IEEE Aerospace and Electronic Systems Magazine  (Volume:5 ,  Issue: 2 )