Study on flow characteristics of single-phase flow in narrow annular channels
- 1. College of Nuclear Science and Technology, Harbin Engineering Univ., Harbin (China)
- 2. State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong Univ., Xi'an (China)
Description
The characteristics of the single-phase flow in narrow annular channels were analyzed and theoretical model was proposed. Based on the present model, the theoretical calculation was performed to predict the flow characteristics for the developed flow in narrow annuli with the gap sizes of 1.0, 1.5 and 2.0 mm, respectively. The calculation results are in good agreement with experimental data. In addition, the gap size of the narrow annuli has great impact upon the flow characteristics. The decrease of the gap size reduces the friction factor. The higher the Reynolds number, the larger the effect of the gap size upon the friction coefficient during single-phase flowing through narrow annular channels. The effect of the gap size upon the friction coefficient depends on the Reynolds number, and will decrease with the decrease of the Reynolds number. (authors)
Additional details
Publishing Information
- Journal Title
- Atomic Energy Science and Technology
- Journal Volume
- 41
- Journal Issue
- 5
- Journal Page Range
- p. 575-579
- ISSN
- 1000-6931
INIS
- Country of Publication
- China
- Country of Input or Organization
- China
- INIS RN
- 40031069
- Subject category
- S42: ENGINEERING;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- COMPUTER CALCULATIONS; EQUIPMENT; EXPERIMENTAL DATA; FRICTION FACTOR; HEAT TRANSFER; MATHEMATICAL MODELS; REYNOLDS NUMBER; TURBULENT FLOW
- Descriptors DEC
- DATA; DIMENSIONLESS NUMBERS; ENERGY TRANSFER; FLUID FLOW; INFORMATION; NUMERICAL DATA
Optional Information
- Notes
- 3 figs., 1 tab., 12 refs.