Abstract: The weighted‐least‐squares method using sensitivity‐analysis technique is proposed for the estimation of parameters in water‐distribution systems. The parameters considered are the Hazen‐Williams coefficients for the pipes. ...

Abstract: Loss characteristics of sharp-edged orifices, quadrant-edged orifices for varying edge radii, and nozzles are studied for Reynolds numbers less than 10,000 for β ratios from 0.2 to 0.8. The ...

Abstract: A study is made of transients in canal networks using a mathematical model based on St. Venant equations. The transient effects of different combinations of types, location, and operation of control structures are studied. ...

Abstract: Analytical solutions for forced well recharge currently in use were initially developed for pumping scenarios and applied for recharge cases assuming that radial flow in the recharge well replicates a mirror image of that ...

Abstract: The weighted-least-squares method based on the Gauss-Newton minimization technique is used for parameter estimation in water distribution networks. The parameters considered are: element resistances (single and/or group ...

Abstract: Well injection replenishes depleting water levels in a well field. Observation well water levels some distance away from the injection well are the indicators of the success of a well injection program. Simulation of the ...

Abstract: A pseudo-three-dimensional particle tracking model of drifter paths has been developed to study the movement of scalars through a complex network of tidal channels and junctions. To better simulate dispersion caused by ...