Author Affiliations
Beijing Key Laboratory of Multiphase Flow and Heat Transfer for Low Grade Energy, North China Electric Power University, Beijing 102206, Chinashow less
Fig. 1. Schematic diagram of the geometric model.
Fig. 2. Verification for grid independence.
Fig. 3. Thermophysical properties of S-CO2 under different pressures: (a) Specific heat at constant pressure cp; (b) density ρ; (c) thermal conductivity λ; (d) viscosity μ.
Fig. 4. Comparison of wall temperature predicted by simulation against experimental data by Adebiyi and Hall
[12].
Fig. 5. Typical curves of heat transfer characteristics for S-CO2 in horizontal tube: (a) Axial distribution of inner wall temperature and heat transfer coefficient at top generatrix and bottom generatrix; (b) circumferential distribution of vapor-like film thickness.
Fig. 6. Vector velocity distribution in the characteristic cross-sections.
Fig. 7. Temperature distribution in the characteristic cross-sections.
Fig. 8. Radial distribution of axial velocity for S-CO2 in horizontal tube.
Fig. 9. Influences of heat flux on wall temperature and second flow intensity.
Fig. 10. Radial distribution curves of thermophyical properties in the characteristic cross-sections under different heat flux: (a) Specific heat at constant pressure cp; (b) thermal conductivity λ; (c) axial velocity u; (d) turbulent kinetic energy k.
Fig. 11. Effects of mass flux on wall temperature and second flow intensity.
Fig. 12. Radial distribution curves of thermophyical properties in the characteristic cross-sections under different mass flux: (a) Specific heat at constant pressure cp; (b) thermal conductivity λ; (c) axial velocity u; (d) turbulent kinetic energy k.