A general formula for the uniform flow of water in rivers and other channels; by E. Ganguillet and W.R. Kutter. Tr. from the German, with numerous additions, including tables, diagrams, and the elements of over 1200 gaugings of rivers, small channels and pipes, in English measure (1889)
Ganquillet, E, Hering, Rudolph, 1847-, Kutter, Wilhelm R., 1818-1888, Trautwine, John Cresson, 1850-1924 · New York J. Wiley · leaf 139
s inFig. 19. Under this assumption, the tangent — of the angle between the straight lines and the axis of abscissae remains the samefor each category of roughness of wetted perimeter, even if yvaries. We accordingly designate this tangent ;/ and thusobtain, from (i), * As they do in the first… … the values -^, and joining by a straight line the points so found, we obtain for this line, as in the case of the first formula. Fig.18, the equation in •(4) In plotting this straight line we obtain the values of j^ and of -^. Substituting them in the general formula, we have and y. + j m (5) 5 c =…
Hydraulics · Stream measurements
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
