Measurements of turbulent flow induced by 90-degree cylindrical elbow

Conference · Tue Sep 01 04:00:00 EDT 1981

OSTI ID:6004680

Moore, W E; Kirouac, G J

Laser Doppler anemometry (LDA) has been used to provide detailed measurements of the mean velocity and turbulence of the fluid in a cylindrical pipe downstream from a 90/sup 0/ elbow. Cross-stream velocity profiles were obtained at several stations past the elbow; three velocity components were measured to fully characterize the primary and secondary flow. The experiment was performed in the KAPL 50-gpm Methods Development Loop by using 7.5-cm-diam glass pipe, with a 90/sup 0/ bend of 13.2-cm radius, at a Reynolds number of 37,500. Optical distortion effects were minimized by the use of a water-filled plastic box placed on the side of the glass pipe. The experimental results successfully demonstrate the ability of LDA to accurately measure 3-D turbulent swirling flows in cylindrical pipe geometries.

• Research Organization: Knolls Atomic Power Lab., Schenectady, NY (USA)
• DOE Contract Number: AC12-76SN00052
• OSTI ID: 6004680
• Report Number(s): KAPL-4142; CONF-811114-1; ON: DE81029981
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
ANEMOMETERS
CONFIGURATION
DATA
EXPERIMENTAL DATA
FLOW RATE
FLUID FLOW
HYDROGEN COMPOUNDS
INFORMATION
LASERS
MEASURING INSTRUMENTS
NUMERICAL DATA
OXYGEN COMPOUNDS
PIPE FITTINGS
PIPES
REYNOLDS NUMBER
TURBULENCE
TURBULENT FLOW
WATER