A computer model to calculate varied flow functions for circular channels

Abstract A computer model is developed to calculate the gradually varied flow profiles based on the Keifer and Chu approach. Numerical integration using Simpson's rule is adopted. The model can handle positive, horizontal and adverse pipe slopes. The computer model can provide total G.V.F. length or a detailed x-y calculation. Lotus 1-2-3 print-graph capabilities are used to plot the G.V.F. profiles.