For a constant heat load with a range of superficial
NuTP/NuL 0.0
0.5
1.0
1.5
2.0
Gas core flow
Slug flow
ReGS = 53
0.0
0.5
1.0
1.5
2.0
Gas core flow
Slug flow
ReGS = 97
ReLS
100 150 200 250 300 350 400
0.0
0.5
1.0
1.5
2.0
Gas core flow
Slug flow
ReGS = 142
(a)
(b)
(c)
NuTP/NuL NuTP/NuL
100 150 200 250 300 350 400
100 150 200 250 300 350 400
ReLS
ReLS
Fig. 11. Heat transfer enhancement ratio for different flow patterns.
60 S. Saisorn et al. / Experimental Thermal and Fluid Science 55 (2014) 54–61
Reynolds numbers (ReGS = 54–142 and ReLS = 131–373), the experiments
were performed in parallel rectangular micro-channels to
obtain flow pattern and heat transfer data