Presentation Information
[3C02]Development of Validation Technology for Detailed Two-Phase Flow Simulation Codes to Optimize Innovative Reactor Design(8) Development of Fluorescence Laser Doppler Velocimeter for Gas–Liquid Two-Phase Flow Measurements
*Katsuhiko Fukuzato1, Kenichi Nakamura1, Ayako Ono2, Hiroyuki Yoshida2, Kaoru Okamoto3, Daisuke Moriguchi3, Shigeo Hosokawa4 (1. Seika Digital Image Corporation , 2. JAEA, 3. NDC, 4. Kansai Univ.)
Keywords:
Adovanced reactor,Two phase flow,Gas bubbles,Fluorescence particles,LDV,Velocimeter
To accelerate the early commercialization of advanced reactors, the use of detailed two-phase flow numerical simulation as an alternative or complement to large-scale mock-up tests is being considered. In this study, we are developing a measurement technique capable of simultaneously obtaining local void fraction and liquid velocity to validate the accuracy of detailed two-phase flow simulation.We developed a laser Doppler velocimeter (LDV) that enables simultaneous detection of excitation light and fluorescence wavelengths from tracer particles. By exploiting the difference between scattered excitation light from gas bubbles and fluorescence emission from liquid-phase tracers, the system successfully separates the Doppler signals of each phase.