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The Gauckler–Manning formula states: = / / where: V is the cross-sectional average velocity (dimension of L/T; units of ft/s or m/s); n is the Gauckler–Manning coefficient. Units of n are often omitted, however n is not dimensionless, having dimension of T/L 1/3 and units of s/m 1/3.
[3] The report validated the Gauckler formula and by inference, the Manning formula. Strickler proposed that the Ganguillet-Kutter n-value, used to characterize hydraulic roughness in the Manning formula, could be defined as a function of surface roughness, k S {\displaystyle {k}_{S}} .
The inclusion of English units, s/[ft 1/3], in the description of the Gauckler–Manning coefficient, commonly known as Manning's n-value, is incorrect. The value of the coefficient is specific to the channel or pipe being examined and does not change if velocity or flow is computed in either English or metric units.
Strickler is a surname. Notable people with the surname include: Albert Strickler (1887–1963), co-author of the Gauckler–Manning–Strickler formula; Amelia Strickler (born 1994), British shot putter
Shear velocity, also called friction velocity, is a form by which a shear stress may be re-written in units of velocity.It is useful as a method in fluid mechanics to compare true velocities, such as the velocity of a flow in a stream, to a velocity that relates shear between layers of flow.
Robert Manning. Robert Manning (22 October 1816 – 9 December 1897) was an Irish hydraulic engineer best known for creation of the Manning formula. Manning was born in Normandy, France, the son of a soldier who had fought the previous year at the Battle of Waterloo. In 1826 he moved to Waterford, Ireland and in time worked as an accountant.
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The photograph is an extreme close-up of a woman's upturned face with glass droplets placed on her cheeks to imitate tears. [s 1] [s 4] Sleeping Woman: 1930 Man Ray Paris, France [s 2] See article Behind the Gare Saint-Lazare: 1932 Henri Cartier-Bresson: Paris, France [s 1] [s 2] [s 3]