Detailed measurements of vertical annular two-phase flow. Part 2: Gas core turbulence

Journal Article · Thu Dec 01 04:00:00 EST 1994 · Journal of Fluids Engineering; (United States)

DOI:https://doi.org/10.1115/1.2911852· OSTI ID:6798016

Azzopardi, B J ^[1]; Teixeira, J C.F. ^[2]

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1. Univ. of Nottingham (United Kingdom). Dept. of Chemical Engineering
2. Univ. do Minho, Braga (Portugal). Escola de Engenheria

This paper reports measurements on gas phase turbulence made in vertical annular flow. Measurements were first carried out with single-phase gas flow to check the measurement technique/test section combination was working correctly. Laser anemometry techniques have been employed to measure gas velocities in annular two-phase flow. Mean velocities and Reynold's stresses in the gas appear to be similar to those in corresponding rough pipes. However, turbulence intensities are higher than the values corresponding to flow over a wall with a roughness equivalent to the film interface.

• OSTI ID: 6798016
• Journal Information: Journal of Fluids Engineering; (United States), Journal Name: Journal of Fluids Engineering; (United States) Vol. 116:4; ISSN JFEGA4; ISSN 0098-2202
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
ANNULAR SPACE
BOILERS
CONFIGURATION
DATA
EXPERIMENTAL DATA
FLUID FLOW
INFORMATION
NUMERICAL DATA
ORIENTATION
SPACE
STEAM GENERATORS
TWO-PHASE FLOW
VAPOR GENERATORS