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INCOMPRESSIBLE JET MIXING IN CONVERGING-DIVERGING AXISYMMETRIC DUCTS
MASSACHUSETTS INST OF TECH CAMBRIDGE CAMBRIDGE United States
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A test has been made of the constant-turbulent-Reynolds number hypothesis for a turbulent jet flow in a converging-diverging axisymmetric tube. Using the free turbulent jet as the sole source of data for evaluation of the Reynolds number, and velocity shear distributions, the general ducted flow was predicted with the aid of appropriate similarity relations. Calculated results are compared with the extensive and consistent data of Hembold good agreement is observed. It is found that the methods of calculation employed can be considerably simplified without large effect on the calculated results. The existence and extent of zones of recirculation are also discussed.
APPROVED FOR PUBLIC RELEASE