Accession Number : AD0708038

Title :   FLOW OF DILUTE POLYMER SOLUTIONS IN ROUGH PIPES,

Corporate Author : IOWA UNIV IOWA CITY IOWA INST OF HYDRAULIC RESEARCH

Personal Author(s) : Poreh,Michael

Report Date : APR 1970

Pagination or Media Count : 25

Abstract : A simplified model is developed to describe the effects of boundary roughness on drag reduction achieved by polymer additives. The model is suitable for both uniform and nonuniform roughness. Predictions of friction coefficients by means of the model are in reasonable agreement with experimental results. (Author)

Descriptors :   (*POLYMERS, ADDITIVES), (*SKIN FRICTION, REDUCTION), (*PIPES, SURFACE ROUGHNESS), SOLUTIONS(MIXTURES), MATHEMATICAL MODELS

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE