DAGGETT

DAGGETT 06.06. 1867 Foxcraft ME/USA 17.03. 1932 Winthrop MA/USA Herbert Chapin Daggett graduated in 1891 from the Massachusetts Institute of Technology MIT, with the BSc degree in civil engineering. He then took a position as assistant engineer of the Proprietors of the Locks and Canals, on Merrimack River, Lowell MA, where he tested a variety of water-wheels and their settings, as also transmission methods of the power developed, as at these times there were not yet direct-connected electric generators. He received also training in the discharge measurement through open and closed channels. In 1899 Daggett became chief engineer of the Swain Turbine Manufacturing Company, Lowell MA, where he designed and supervised the manufacture of hydraulic turbines. From 1901 to 1903, he was engineer in the Hydraulic Turbine Division of the Holyoke Machine Company, Worcester MA, where he had similar duties as previously. His work with the two companies served to broaden his experience and his knowledge in the development of hydraulic machinery. From 1903 to the time of his death, Daggett had charge of the New England Office of the S. Morgan Smith Company, York PA, manufacturers of hydraulic turbines and allied equipment, as engineer and sales manager. He thereby widened his acquaintance with engineers and builders of hydraulic power plants. He also saw the rapid introduction of electrical equipment and the change from the driving of the machinery to the direct connection of generators, and the driving of machinery by motors. He had a thorough knowledge of the various types of turbines, and the particular conditions they were best suited to satisfy the requirements. Few important developments were made in New England without Daggett’s advice. Because of his knowledge of the discharge of the various rivers, he was able to determine the possibilities of undeveloped water power. His notable accomplishment was his broad knowledge of the water-power situation in New England, and his acquaintanceship with hydraulic engineers. He was a man of high ideals, having the respect of all with whom he came into contact. He was member of the Boston Society of Civil Engineers, and of the American Society of Civil Engineers. Anonymous (1895). Holyoke Machine Co., Worcester MA. Blanchard: Holyoke. Anonymous (1914). S. Morgan Smith Records 1890-1914. York PA. Anonymous (1933). Herbert C. Daggett. Trans. ASCE 98: 1526-1527. Anonymous (1956). The Hydraulic Turbine Laboratory of the S. Morgan Smith Co. York PA. Peckham, B. (1946). S. Morgan Smith Co. Story of a dynamic community, York PA: 197. P

DAILY 19.03. 1913 Columbia MO/USA 27.12. 1991 Pasadena CA/USA James Wallace Daily obtained the BA degree from the Stanford University in 1935, and the MS degree from California Institute of Technology, Pasadena, in 1937, from where he also received the PhD title in 1945. From 1936 to 1937 he had been a research assistant in hydraulics at Caltech, then until 1940 a research fellow in hydraulic machinery, and until 1946 an instructor in mechanical engineering. Daily then was appointed assistant professor of hydraulics at the Massachusetts Institute of Technology MIT, was promoted to associate professor in 1949, and was a professor there from 1955 to 1964. From then until 1972, Daily was a professor of engineering mechanics at University of Michigan, Ann Arbor MI, and there professor of fluid mechanics and hydraulic engineering until retirement in 1981. He was a visiting professor to University of Delft, and a visiting scientist to Electricite de France, Paris, in 1971, and a visiting professor to the East China College of Hydraulic Engineering, Nanking, in 1979. Daily and Donald R.F. Harleman (1922-2005) authored the outstanding textbook Fluid dynamics. This work may be considered an essence of the then available knowledge in basic fluid dynamics, including both potential and viscous flow problems, expanding into turbulence, among other subjects. The second known book of Daily is Cavitation co-authored by Robert T. Knapp (1899-1957) and Frederick G. Hammitt (1923-1989). It may be considered one of the very first books dealing exclusively with this hydraulic phenomenon, which is known for failure of both civil and mechanical engineering elements. Daily was one of the Americans who was working in both branches, and therefore contributed from a generalized point of view to these problems. He was president of the International Association of Hydraulic Research IAHR from 1967 to 1971, and awarded IAHR Honorary Membership, among many other distinctions. Anonymous (1956). First cavitation seminar. Mechanical Engineering 78(1): 116. P Anonymous (1964). Daily, James Wallace. Who’s who in engineering 9: 407. Lewis: New York. Anonymous (1987). Daily, James Wallace. Who’s who in America 44: 636. Marquis: Chicago. Daily, J.W. (1949). Cavitation characteristics of a hydrofoil section. Trans. ASME 71(4): 269-284. Daily, J.W., Harleman, D.R.F. (1966). Fluid dynamics. Addison-Wesley: Reading MA. Harleman, D.R.F. (1993). James Wallace Daily. Memorial tributes NAE 6: 22-24. P Knapp, R.T., Daily, J.W., Hammitt, F.G. (1970). Cavitation. McGraw-Hill: New York. Prins, J.E. (1992). Jim Daily. IAHR Bulletin 30(1): 36. P