Excerpt from Calculations in Hydraulic Engineering, Vol. 2: A Practical Text-Book for the Use of Students, Draughtsmen, and Engineers, With Numerous Illustrations and Examples

The calculations which form the subject-matter of this volume are those relating to the motion of water and to the design of works intended for its conveyance. The problems that most frequently arise in the design of such works are treated from a practical point of view; and the chief object of the writer throughout has been to meet the actual requirements of the hydraulic engineer in his daily practice.

In great measure these problems will have reference to the uniform flow of water in pipes and channels, and in all such questions it must be admitted that nothing like a mathematical accuracy is by any means attainable; but it will be the desire of every engineer to employ a method that shall approximate as closely as possible to the ascertainable truth. On the other hand, such calculations will often have to be repeated many scores or hundreds of times for the purposes of one work of construction; and the exigencies of an engineer's practice will almost forbid the employment of any method that involves a great complexity of calculation. The methods which have been followed in this volume will generally require the use of a table of logarithms; but if they do not quite possess the delightful simplicity of the old and well-known formula, they will certainly avoid its more serious errors, while they are capable of being applied with great facility to the questions that most frequently arise in practice. To lighten the labour of such computations, tables of discharge have been worked out for pipes and for brick culverts of circular section.

At the same time, the evidences of experiment, including recent observations, have been analyzed with the object of determining the varying values of the coefficient in the old formula, so that the familiar calculations can be worked out with a tolerable degree of accuracy, on the old lines, wherever that course may be preferred.

About the Publisher

Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com

This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.