Verification of Large-scale Rainfall Simulator by Measuring Intensity and Distribution for Flood Mitigation Research

다국어 초록 (Multilingual Abstract)

A large scaled rainfall simulator had constructed by the National Disaster Management Research Institute (NDMI) in 2016 to help for designing the disaster risk reduction measures with experimental study. It was comprised of 288 nozzles and it had the size of 30m each length and 12m of height, which can be generated 250mm/h rainfall intensity at most. In order to verify the developed simulator, two types of test were performed such as for evaluating total rainfall amounts and spatial distributions of raindrops. The Christiansen Uniformity Coefficients (CuC) was used to evaluate the uniformity of raindrops, which is one of the significant parameter to assure the similarity to the real rainfall. As a result, CuC showed around 80% above, which means that the developed simulator has high operational reliability. Thus, it will be fully functional for drainage model experiment or hydraulic structure design contributing to the flood disaster risk reduction.

목차 (Table of Contents)

• INTRODUCTION
• RAINFALL SIMULATOR
• EXPERIMENTAL CONDITION
• CONCLUSION