Published August 2015 | Version v1
Journal article Metadata-only

Effect of turbulence model on prediction of subcooled boiling

Creators

  • 1. School of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an (China)
  • 2. State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an (China)

Description

The ANSYS FLUENT14.5 was employed to simulate the two-phase forced convection subcooled boiling in a vertical heated pipe. Different turbulence models, wall functions and two-phase turbulence treatments were utilized to each of four sets of grids. Results were compared with experiment data to analyze the effects of grids, turbulence model, wall functions and two-phase turbulence treatments. The results of k-ε model show better agreement with experiment data than those of k-ω model. Dispersed and Per Phase treatments for two-phase turbulence parameters perform no better than Mixture treatment. The enhanced wall function can't achieve satisfactory results for the grid with near wall function Y+ ≈ 1. (authors)

Additional details

Publishing Information

Journal Title
Atomic Energy Science and Technology
Journal Volume
49
Journal Issue
8
Journal Page Range
p. 1366-1373
ISSN
1000-6931

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
48072599
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Descriptors DEI
COMPUTERIZED SIMULATION; FORCED CONVECTION; MIXTURES; PWR TYPE REACTORS; SUBCOOLED BOILING; TURBULENCE; TWO-PHASE FLOW; WALLS
Descriptors DEC
BOILING; CONVECTION; DISPERSIONS; ENERGY TRANSFER; ENRICHED URANIUM REACTORS; FLUID FLOW; HEAT TRANSFER; MASS TRANSFER; PHASE TRANSFORMATIONS; POWER REACTORS; REACTORS; SIMULATION; THERMAL REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS

Optional Information

Notes
6 figs., 4 tabs., 18 refs.