Abstract: This paper is devoted to the improvement of the measuring range of inverted V‐notch (IVN) weir, a practical linear sharp‐crested weir, designed earlier by the writers. The range of linearity of IVN can be considerably ...

Abstract: This paper presents a practical linear proportional weir of simple geometric shape in the form of an inverted V‐notch or inward trapezium. The flow through this weir, of half‐width