Suggestion for the Optimum Operating Methods of Rainfall Simulator through the Analysis of Raindrop’s Characteristics (인공 강우 시뮬레이터의 강우 특성 분석을 통한 최적 운영방법 제안)

Jin Kwan Kim (김진관); 강재원; Jung, Kwansue (정관수); 최훈; Min Seok Kim (김민석)

Suggestion for the Optimum Operating Methods of Rainfall Simulator through the Analysis of Raindrop’s Characteristics

Journal of the Association of Korean Geographers
Abbr : JAKG
2016, 5(1), pp.51-60
Publisher : Association of Korean Geographers
Research Area : Social Science > Geography

Jin Kwan Kim ¹, 강재원 ², Jung, Kwansue ³, 최훈 ¹, Min Seok Kim ³

¹전남대학교
²충남대학교 국제수자원연구소
³충남대학교

Candidate

ABSTRACT

The characteristics of rainfall simulator are so important for the laboratory experiment of landslide and sediment runoff. To analyze the characteristics of the newly designed rainfall simulator and decide its optimum operating methods, we measured the rainfall intensity and the kinetic energy of raindrops with three cases; Case I: different nozzle combinations and different input currents, Case II: only different nozzle combinations, and Case III: only different nozzle sizes. On the base of the measuring results, we suggested two optimum conditions (condition 1 and 2) for the artificial rain simulation. Although there was large difference between the characteristics of natural rainfall and those of simulated rainfall, the kinetic energy distribution of newly designed rainfall simulator was similar to those of many previous studies. However, the new design of rainfall simulator having the characteristics of natural rainfall will be needed for further detailed laboratory study reflecting the natural conditions.

KEYWORDS

Rainfall simulator, Raindrop characteristics, Spatial distribution of rainfall intensity, Kinetic energy of raindrops, Optimum operating method

Citation status

* References for papers published after 2023 are currently being built.

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Journal of the Association of Korean Geographers 2023 KCI Impact Factor : 1.35