Laserfiche WebLink
Throat Section Shape Selection <br />•Constructability <br />•Range of Flows to be Measured <br />Shape <br />Qmax/Qmin <br />±2% uncertainty <br />Qmax/Qmin <br />±4% uncertainty <br />Rectangular 35 100 <br />Triangular 350 1970 <br />Trapezoidal – wide at top 55 180 <br />Trapezoidal – narrow at top 210 1080 <br />Parabolic 105 440 <br />Complex – wide at top > 100 > 200 <br />Complex – narrow at top > 250 > 2000