 | Institution of Civil Engineers (Great Britain) - 1879 - 484 str.
...•j^ — — = hydraulic mean radius in feet ; C = contour of pipe in feet ; S = sectional area ; L = length of pipe in feet ; d = diameter of pipe in feet. The value of " m " has been given by various experimenters for straight clean pipes of different diameters... | |
 | Clement Mackrow - 1879 - 552 str.
...1029-6969 1140-9384 FRICTION OF SUKFACES, ETC. FLOW OF WATER THROUGH PIPES. H = bead of water in feet. L ^ length of pipe in feet. D = diameter of pipe in feet. • . •> • • Q = quantity discharged in cubic feet per second. V = velocity of discharge in cubic... | |
 | Peder Lobben - 1899 - 460 str.
...pipe are considered the formula will be : -2gh v = Velocity of discharge in feet per second. 2^=64.4 L = Length of pipe in feet. d = Diameter of pipe in feet. EXAMPLE. Find the velocity of discharge from a pipe six inches in diameter. The head is l6 feet and... | |
 | Robert Gordon Blaine - 1903 - 178 str.
...= r. v in this case is a velocity in larger pipe. P - 4f~ J d' for surface friction of rough pipe. L = length of pipe in feet ; d = diameter of pipe in feet. Example 126. — Pipe 6 inches in diameter discharges into one 9 inches in diameter, the rate of flow... | |
 | Rollin William Hutchinson - 1907 - 374 str.
...table and will be found useful in many instances. F — -jm p (4 Vs + 5 V-2). Where F — friction head, L — length of pipe in feet; D — diameter of pipe in inches; V — velocity in feet per second. Table I 1 » I 1 ft 1 4 1 6 1 8 2 Vel. Inn. Loss or head... | |
 | Frank Koester - 1909 - 506 str.
...velocity in feet per second. Another formula deduced by Wm. Cox, is as follows: . 1000 D F = friction head. L = length of pipe in feet. D = diameter of pipe in inches. V = velocity in feet per second. Table II has been abstracted from tables given by the Pelton... | |
 | William Paul Gerhard - 1909 - 588 str.
...the service, was computed from Merriman's formula, ". in which Hl = loss of head in friction in feet, L = length of pipe in feet, d = diameter of pipe in feet, v = velocity of flow in feet per second, g = 32-16, / = friction coefficient, varying from 0.05 to... | |
 | Arthur Maurice Greene - 1913 - 344 str.
...entrance loss = |; n = numbers of bend; m = coefficient for i bend =0.2; /= friction factor = 0.02; , L = length of pipe in feet; d = diameter of pipe in feet ; g = acceleration of gravity = 32. 2 ft. per sec. per sec. If the bracket be called Z the following... | |
 | Charles Haynes Hughes - 1917 - 774 str.
...ff, = 4 F -- V? Where Hp = loss of head in feet of air due to friction F = coefficient of friction L = length of pipe in feet d = diameter of pipe in feet Vi = velocity of flow through the pipe in feet per second If Vi is changed to V or velocity in feet... | |
 | Edmund Masters Ivens - 1920 - 278 str.
...friction; /= friction factor which varies with the diameter and nature of the inner surface of pipes; l = length of pipe in feet; d = diameter of pipe in feet; — = velocity head. The factor / is the uncontrollable quantity in the formula. It varies not only... | |
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L = length of pipe in feet; D = diameter of pipe in inches; V = velocity in feet per second. 
