All Problems

Hydrodynamics

Problem 1.316

Two manometric tubes are mounted on a horizontal pipe of varying cross-section at the sections \(S_{1}\) and \(S_{2}\) (Fig. 1.81). Find the volume of water flowing across the pipe's section per unit time if the difference in water columns is equal to \(\Delta h\).

Reveal Answer
Q=S1S22gΔh/(S22S12)Q=S_{1} S_{2} \sqrt{2 g \Delta h /\left(S_{2}^{2}-S_{1}^{2}\right)}