Review Article

Review of Available Data for Validation of Nuresim Two-Phase CFD Software Applied to CHF Investigations

Table 3

Data sources relative to dryout investigations.Qfilm: film flowrate, δf: film thickness, ΔP: pressure drop, fw: wave frequency, Cw: wave velocity, E: fraction of entrained liquid, Eeq: equilibrium entrainment rate, Qdep: deposition rates.

Reference Measured value Geometry Fluid/heating Flow conditions

Würtz, 1978 [47]ΔPQfilmδffwCw:Tube test section: Di = 10 mm, Lh = 9.0 m Annulus section: Di = 17 mm De = 26 mm, Lh = 8.0 m; 3.5 mSteam-water adiabatic and diabaticP: 30, 50, 70, and 90 bar G: 500–3000 kg/m2s
Andreussi, 1983 [52]ΔPPlexiglass tube Di = 24 mm L = 5 mAir-water adiabaticP: atmospheric Gl: 9.73–200.3 g/s Gg: 17.5–50.3 g/s
Govan et al., 1989 [51]ΔPτwτIQdepLOTUS test rig tubular section Di = 31.8 mm L = 23 mAir-water adiabaticP: 2.4 bar Gl: 100, 200, 300, 500 kg/m2sGg: 70–240 kg/m2s Temperature ambient
Cousins and Hewitt, 1968 [48]QfilmCwEacrylic resin tube Di: 9.525 mmAir-water adiabaticP: 2 bar Gg: 18.14 & 31.75 kg/h Temperature ambient
Adamsson and Anglart, 2005 [49]QfilmTube test section Di: 13.9 mm Lh: 3.65 m various power profilesSteam-water diabaticP: 70 bar G: 500–1750 kg/m2s
Okawa et al., 2005 [50]Deposition mass transfer coefficients Droplet concentration EeqStainless steel tube Di: 5 mm L: 3670 mmAir-waterP: 1.4–7.6 bar Temperature ambient Gl: 201–1264 kg/m2sGg: 173–627 kg/m2s
Fore et al., 2002 [54]Drop size distributionStainless steel duct Di: 9.67 mm L: 3.4 mNitrogen-waterPressure 3.4 and 17 bar Temperature 38°C Ql: 0.0157 and 0.126 kg/s Jg: 5, 7, 17 and 23 m/s
Fore and Dukler, 1995 [55]Drop size distributionVertical tube Di: 50.8 mm L: 7.6 mAir-water air-water+glycerine (50% mix) (6 cP liquid)
Andreussi, 1983 [52]E, Rate of liquid interchangePlexiglass tube Di: 24 mm L: 5 mAir-water adiabaticPressure: atmospheric Ql: 9.73–200.3 g/s Gg: 17.5–50.3 g/s