Low Temperature Physics: 24, 100 (1998); https://doi.org/10.1063/1.593548 (2 pages)
Fizika Nizkikh Temperatur: Volume 24, Number 2 (February 1998), p. 140-142 ( to contents , go back )
Effect of reduced gravity and weightlessness on vapor bubble dynamics and heat transfer in boiling liquid
K. V. Rusanov and N. S. Shcherbakova
B. Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of the Ukraine 47 Lenin Ave., Kharkov, 310164, Ukraine
The results on boiling of liquids and gas bubbling under simulated long-term reduced gravity are reported. The possibility of extrapolating these results to the real spacecraft conditions is considered and the program of on-board space experiments is proposed to test the current theory at the relative accelerations 10-4-10-6 which are unattainable in a laboratory. Tests in free-fall towers, in aircraft, or in ballistic rockets are inadequate since only prolonged (over one hour) experiments in the Earth\'s orbit can provide reliable data. The advantage of cryogenic liquids, helium, in particular, in space experiments is discussed.