| Title |
A Study of the Velocity Distribution and Vorticity Measurement in the Pump Sump Using PIV |
| Authors |
변현혁(Byeon, Hyun Hyuk) ; 김서준(Kim, Seo Jun) ; 윤병만(Yoon, Byung Man) |
| DOI |
https://doi.org/10.12652/Ksce.2020.40.2.0145 |
| Keywords |
빗물펌프장;펌프 흡수조;자유수면와류;입자영상유속계 Water pump station;Pump sump;Free surface vortex;Particle image velocimetry |
| Abstract |
The climate change occurring all over the world increases the risk, specially in urban area, Accordingly, rainwater pumping station expansion is required than before. In order to increase the efficiency of the rainwater pumping station, the analysis of flow characteristics in the pump sump is needed for vortex control. Many efforts have been made to illuminate the vortex behavior using PIV, but any reliable results have not been obtained yet, because of the limitations in image capturing and dependency of measured velocity values on the interrogation area and time interval used for velocity calculation. In this study, therefore, experiments were carried out to find out the limitation of PIV and estimate the validation of the velocity values associated with the analysis parameters such as interrogation area, time interval, grid size. For the experimental condition used in this study, the limitation of PIV and the effects of parameters on the velocity estimation are presented. |