26.4.1869 Wolverton/UK - 9.4.1946 Ayr/UK
Ernest George Coker made his studies at the Royal College of Science, London and took the B.Sc. from Edinburgh University. He graduated as mechanical engineer at Cambridge University. In 1898 he began as a university teacher at the McGill University in Canada. He there worked on hydraulic problems connected to various power schemes. He returned to England as a professor of mechanical engineering at the City and Guilds Technical College of Finsbury from 1905. There he worked for the following nine years on the subject to which he devoted the rest of his life, and with which his name is connected. He explored the stresses in engineering components and structures by using the stressoptical effect. The first paper entitled The optical determination of stress was published in the Philosophical Magazine in 1910. In 1911, a second paper followed in the Transactions of the Naval Architects and his first paper in the Royal Society was published in 1912. Coker was appointed in 1914 to the Kennedy Chair of Civil and Mechanical Engineering at University College, London, and there developed "photoelasticity", of which a treatise resulted with a colleague in 1931.
Coker is known in hydraulics for works published during his early career. The 1903 paper relates to the effect of temperature on the transition of laminar to turbulent pipe flow. Once Osborne Reynolds (1842-1912) had published his path-breaking 1883 paper on the two regimes in pipe flow, and postulated that this phenomenon is only affected by the current Reynolds number, Coker made a detailed experimental analysis to verify the concept. The second paper published in 1904 is a similar attempt to demonstrate Reynolds' criterion, which is actually used as an index for viscous effects in hydraulics.
Anonymous (1946). Prof. E.G. Coker. The Engineer 181: 365.
Anonymous (1952). Coker, Ernest George. Who was who 1941-1950: 233-234. Black: London.
Barnes, H.T., Coker, E.G. (1904). The flow of water through pipes - Experiments on streamline motion and the measurement of critical velocity. Proc. Royal Society 74: 341-356.
Coker, E.G., Clement, S.B. (1903). An experimental determination of the variation with temperature of the critical velocity of flow of water in pipes. Phil. Trans. A 201: 45-61.
Coker, E.G. (1924). Some engineering problems of stress. 1 IUTAM Congress Delft: 18-38. Hill, G.T.R. (1946). Prof. E.G. Coker, F.R.S. Nature 157: 722.
Jessop, H.T. (1952). Ernest George Coker. Notices on Fellows of the Royal Society 8: 389-393. P
Poggendorff, J.C. (1925). Coker, Ernest George. Biographisch-Literarisches Handwörterbuch
5: 234; 6: 463-464; 7b: 866. Verlag Chemie: Leipzig, with bibliography.

Hydraulicians in Europe 1800-2000 . 2013.

Look at other dictionaries:

  • Coker — ist der Name folgender Personen: Syl Cheney Coker, Schriftsteller Dolo Coker (1927–1983), US amerikanischer Pianist Henry Coker (1914−1979), US amerikanischer Jazzposaunist des Swing und Modern Jazz Jerry Coker (* 1932) US amerikanischer Jazz… …   Deutsch Wikipedia

  • Coker — Coker, AL U.S. town in Alabama Population (2000): 808 Housing Units (2000): 328 Land area (2000): 2.319485 sq. miles (6.007438 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 2.319485 sq. miles (6.007438 sq. km) …   StarDict's U.S. Gazetteer Places

  • Coker, AL — U.S. town in Alabama Population (2000): 808 Housing Units (2000): 328 Land area (2000): 2.319485 sq. miles (6.007438 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 2.319485 sq. miles (6.007438 sq. km) FIPS code …   StarDict's U.S. Gazetteer Places

  • Coker — For the surname Coker, see List of people sharing the surname Coker. Coker may refer to: Coker College, a private American college based in Hartsville, South Carolina, United States Camp Coker, a Boy Scout Camp located in South Carolina, United… …   Wikipedia

  • coker — A refinery processing unit that converts the residual oil from the crude unit vacuum or atmospheric column into gas oil that can be made into light products (gasoline, jet and diesel), weak (i.e., low energy content) fuel gas and pet coke. There… …   Petroleum refining glossary

  • coker — coker1 /koh keuhr/, n. Often, cokers. an inhabitant of the mountains of the coal mining regions of West Virginia and Pennsylvania. [1785 95; COKE1 + ER1] coker2 /koh keuhr/, n. Slang. cokehead. [COKE2 + ER1] * * * …   Universalium

  • coker — noun The industrial plant in which coke is manufactured …   Wiktionary

  • Coker — Amongst all the many interesting surnames Cocker deserves to be in the forefront. There are two possible origins, the first and most romantic, originates in the period of the Olde English in the 5th century a.d., and derives from the word cocc ,… …   Surnames reference

  • coker — co·ker …   English syllables

  • çöker — alacalı, muhtelif el unvan …   Çağatay Osmanlı Sözlük

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.