Accession Number : AD0758017

Title :   The Influence of Drag Reducing Polymer on Radiated Noise from Rough Surfaces.

Descriptive Note : Project rept. Oct 70-Nov 71,

Corporate Author : MINNESOTA UNIV MINNEAPOLIS ST ANTHONY FALLS HYDRAULIC LAB

Personal Author(s) : Killen,John M.

Report Date : JAN 1972

Pagination or Media Count : 29

Abstract : Experimental measurements were made of radiated noise from a rough surface in water and from the same noise moving in a dilute water solution of a drag reducing polymer. Roughly 10 Db of noise reduction was observed for a concentration of 100 ppmw Polyox 301. (Author)

Descriptors :   (*FLUID DYNAMICS, *SURFACE ROUGHNESS), (*NOISE, REDUCTION), POLYMERS, DRAG, TEST FACILITIES, TEST METHODS, HYDROPHONES, STANDING WAVE INDICATORS, PRESSURE, NOISE GENERATORS

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE