Development of structures simulating two-phase flow for the uncertainty evaluation of measurement using the 3D-LIF method

Horiguchi, Naoki   ; Masaki, Naoto*; Kaneko, Akiko*; Yoshida, Hiroyuki  

With the development of numerical simulation for two-phase flow, the importance of the measurement of interface positions of two-phase flow and its uncertainty evaluation is increasing for the validation. The LIF (Laser Induced Fluorescence) method is used to capture the cross-section of a fluid with a fluorescent dye, and the 3D-LIF (3-Dimensional LIF) method is the LIF method given an additional scanning function for the normal direction of the cross-section. The 3D-LIF method is suitable for the measurement of three-dimensional measurement of interface positions, but the uncertainty evaluation of the measurement is difficult because that interfaces of two-phase flow are not static. The final goal of this study is to develop the uncertainty evaluation method of the measurement using the 3D-LIF method by making clear plastic structures simulating two-phase flow, which provide static interfaces. To this end, the objective of the study is to develop clear plastic structures. We report the results to make the structures by solidifying clear liquid resin with partial addition of a fluorescent dye and measure their interface positions using the 3D-LIF method.