New Approach for the Computation of the Water Surface Angle in Partially Filled Pipes: Pipes Arranged in Parallel

Abstract

This article presents a new approach for the computation of the water surface angle in pipes arranged in parallel. Estimating this parameter in partially filled pipes is an important task in the solution of many practical problems in the different branches of the engineering profession such as flow measurement and design of drainage networks, where the flow is mostly of the free surface type. This characteristic is needed in the trial and error classical solution and huge number of times. The new method is elaborated to overcome the laborious trial and error method. Here, the computation of the water surface angle becomes easy, simple, and direct.

Discussion of “Accurate and Efficient Explicit Approximations of the Colebrook Flow Friction Equation Based on the Wright ω-Function” by DejanBrkić; and Pavel Praks, Mathematics 2019, 7, 34; doi:10.3390/math7010034

“…Several researchers tried to propose an exact solution of the Colebrook-White equation (which is relevant only for turbulent flow [1,7])with the hope of achieving zero-percent (0%) maximum deviation as proposed in similar research [8][9][10], however simple formulas are always be preferred for highly computationally efficient [1,3]. The authors have presented an interesting work where the Right ω-function and the Padé approximation were used.…”