A Hydraulic Model Test for Discharge Calibration of A Parshall Flume

파샬수로의 유량검정을 위한 수리모형실험

A series of hydraulic model tests have been conducted for a Parshall flume which was designed for streamflow measurements of two experimental basins in Banwol New Industrial Town. the purpose being to study the effect of urbanizations on the watershed hydrology. The model scale was determined based on the 100-year flood discharge of the basins considering the discharge cf the basins considering the discharge capacity of the hydraulic laboratory where the whole tests were conducted. The calibration equations for depth-discharge relations were derived by analyzing the model test data and were compared with those of Parshall's work. The discharge calibration for the prototype flume, which is to be constructed at the outlets of the experimental basins, was obtained through the analysis of data converted from the model test data by the laws of similarity.

도시화가 유역의 수문학적 특성에 미치는 영향을 연구하기 위해 선정된 반월신공업도시내 2개 시험유역의 유량계측시설인 파샬수로에 대한 모형실험을 실시하였다. 시험유역의 100년 홍수량을 기준으로 하고 수리실험실의 유량공급능력을 감안하여 모형수로의 축척을 결정하였으며 모형실험자료의 분석에 의해 수색과 유량간의 검정공식을 유도하였고 이를 Parshall의 실험식과 비교하였으며, 현지에서의 유량측정을 위한 원형수로의 유량검정공식은 상사율에 의해 모형실험자료를 분석 처리함으로서 획득할 수 있었다.