Venkata chalapathi naiduKnowledge Contributor
The ratio of the diameter of a circular section and the side of a square section hydraulically equivalent, is
The ratio of the diameter of a circular section and the side of a square section hydraulically equivalent, is
For a circular pipe, the hydraulic diameter is equal to the diameter of the pipe. For a square pipe, the hydraulic diameter is equal to the side length of the square divided by $\sqrt{4/\pi}$, which is approximately equal to 1.095.