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Flow boiling in tube under normal gravity and microgravity conditions

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Figure

Fig. 2. Void fraction probe.
Fig. 4. Wall friction coefficient and Blasius correlation in single-phase flow.
Fig. 6b shows the measurements corrected with Al-Arabi’s correlation according to the sensor position z and the comparison to Gnielinski’s correlation
Fig. 7. Flow visualisations for bubbly flows, DT sub ¼ 12  C; q = 2 W/cm 2 , (a) G ¼ 540 kg=m 2 =s in 1 ÿ g, (b) in l ÿ g and (c) G ¼ 220 kg/m 2 /s in 1 ÿ g, (d) in l ÿ g.
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