N.A.C.JL. Technical Memorandum No. 902 Pigs. 1,2,3,4,5,6,7 Figure 1.- Impeller with variable width. Figure 2.- Periodic vortex distri- bution on the circle of radius R and corresponding tangential and radial velocities v? and vr on the circle of radius r. Figure 4.- Notations for impeller with… … Figure 6,- Circulation distribu- Figure 7.- Circulation as a tion in radial function of the direction. radius.
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