Lock and dry dock of the Mississippi River Power Company at Keokuk, Iowa, the greatest hydraulic development in the world. (See Problems 36-39). Frontispiece. ELEMENTS OF HYDRAULICS BY S. E. SLOCUM, B. E., PH. D., PROFESSOR OF APPLIED MATHEMATICS IN THE SECOND EDITION REVISED AND ENLARGED UNIV. OF MCGRAW-HILL BOOK COMPANY, INC. 239 WEST 39TH STREET. NEW YORK LONDON: HILL PUBLISHING CO., LTD. 6 & 8 BOUVERIE ST., E. C. PREFACE TO SECOND EDITION THE present revision is based largely on the experience of those who have used the book in the class-room, and is intended to make it more efficient as a text as well as a more complete work for general reference. To effect this several changes in typography have been made, as well as important alterations in the For instance, each paragraph has been numbered for ease of reference, while the classical terms hydrostatics, hydrokinetics, and hydrodynamics have been replaced by the more familiar and descriptive names "pressure of water," "flow of water," and "energy of flow." The principal additions to the text consist of a more complete and up-to-date discussion of the flow of water in pipes, with special reference to the exponential formula and its graphical solution; a summary of the principal formulas for the strength of pipe; a more extended discussion of weir formulas; a fuller presentation of the modern use of siphons on a large scale; recent developments in the theory of water hammer; and the modern solution of penstock and surge tank problems. Numerous minor changes have also been made wherever such changes seemed indicated for additional clearness or proper emphasis. For instance, the applicability of Chezy's formula to pipe flow as well as to open channels has been pointed out; the turbine constants have been revised to date; the principles of draft tube design indicated; the mathematical discussion of back-water has been replaced by a simple application of Chezy's formula; while special care has been taken to correct all misprints as well as inaccuracies of statement. A complete set of answers to problems has been prepared, and is printed separately. December, 1916. S. E. SLOCUM. 357398 |