Application of Long0-throat Flume in Measuring Flow Rate in Irrigation Areas

long throat flume is recommended nowadays to use in flow rate measurement in irrigation areas for its several advantages over other types of flumes known: ① with a simple flow rate table determined on the flume dimensions, errors of measurement results can be controlled to be less than 5%; ② water head loss over the flume is minimal; ③ this type of flume is suitable nearly to any kinds of channel and is nearly free from floating debris effects.