Accession Number : AD0465597

Title :   EXPERIMENTS ON FREE TURBULENCE IN VISCO-ELASTIC FLUIDS.

Descriptive Note : Technical rept.,

Corporate Author : HYDRONAUTICS INC LAUREL MD

Personal Author(s) : Wu, Jin

Report Date : MAR 1965

Pagination or Media Count : 29

Abstract : In order to investigate the possible turbulencedamping characteristic of non-Newtonian fluids, the diffusion and decay of free turbulence was measured and compared on a laboratory scale by observing the spreading of a cylindrical turbulent wake in different media. Significant changes in the diffusion and decay characteristics of nonNewtonian additives (macromolecules) were observed. The results indicate a close correlation between effects on the decay of turbulence and the reduction of frictional resistance on smooth surfaces as observed in other experiments. (Author)

Descriptors :   (*TURBULENCE, DIFFUSION), (*FLUIDS, VISCOELASTICITY), (*DRAG, REDUCTION), ADDITIVES, WAKE, CORRELATION TECHNIQUES, FLUID FLOW.

Distribution Statement : APPROVED FOR PUBLIC RELEASE