Accession Number:

AD0637305

Title:

THE EFFECT OF HIGH-MOLECULAR-WEIGHT POLYMER ADDITIVES ON THE PERFORMANCE OF A CONICAL DIFFUSER.

Descriptive Note:

Corporate Author:

NAVAL ORDNANCE TEST STATION CHINA LAKE CALIF

Personal Author(s):

• Patrick,H. V. L.

Report Date:

1966-08-01

Pagination or Media Count:

28.0

Abstract:

Experiments were conducted to obtain and compare conical-diffuser performance information using plain tapwater and high-molecular-weight polymer solutions. The diffuser exhibited a transitory-type separation with plain water. Test results showed that diffuser performance increased by approximately 7 to 9 percent when using J2-FP guar gum solution concentrations of 164 to 18 percent over a Reynolds-number range of 55,000 to 75,000. The experiments also revealed that large-scale pressure fluctuations might be greatly decreased by the use of these solutions. Author

Descriptors:

• (*DIFFUSERS
• PERFORMANCE(ENGINEERING))
• (*ADDITIVES
• LUBRICANTS)
• POLYMERS
• SKIN FRICTION
• REDUCTION
• SOLUTIONS(MIXTURES)
• CONICAL BODIES
• MOLECULAR WEIGHT
• FLOW SEPARATION
• PRESSURE

Subject Categories:

• Lubricants and Hydraulic Fluids
• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE