Abstract: This paper addresses the problem of draining a heavy soil of low hydraulic conductivity overlying an impermeable layer by means of a combined system of pipe and mole drains. The analysis uses the complex functions and the ...

Abstract: Three formulas are presented for designing pipelines of optimum diameter with equally‐spaced, similar pumping units. Each of the three formulas corresponds to a particular zone on a Moody diagram, namely, laminar flow, ...

Abstract: This paper addresses the hydraulic and economic optimum design of a horizontal pipeline with equally spaced similar pumping units. A single design formula is presented for application to all turbulent flow regimes on the ...

Abstract: The problem of a lateral pipe with equally spaced emitters and uniform slope is investigated. Individual emitters are considered in discharge and pressure estimations along the lateral. The friction head loss between ...

Abstract: In this paper, the writers present a formula for sizing steel pipelines of optimal diameter with equally spaced, similar pumping units. The general case of an inclined pipeline with fitting is considered in the analysis. ...

Abstract: This paper addresses a new design technique for sprinkler irrigation laterals with equally spaced sprinklers and constant longitudinal slope. The technique uses the Darcy‐Weisbach friction formula and accounts for the ...