Y. Tsuji et al., VISUALIZATION AND CORRELATION-ANALYSIS OF COUNTERCURRENT 2-PHASE FLOWIN A THERMOSIPHON BY NEUTRON RADIOGRAPHY, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 377(1), 1996, pp. 148-152
We visualized the working fluid behavior in a bent thermosyphon by a n
eutron radiography and analyzed it quantitatively with an image proces
sing technique. Working fluid velocity was evaluated by the two-point
correlation function and also the spatio-temporal correlation was calc
ulated, which led to a clarification of the pass route of working flui
d in the thermosyphon. The probability density function of the void fr
action was calculated.