River Meanders--theory of Minimum Variance
Author: Walter Basil Langbein
Publisher:
Published: 1966
Total Pages: 24
ISBN-13:
DOWNLOAD EBOOK →The geometry of a meander is that of a random walk whose most frequent form minimizes the sum of the squares of the changes in direction in each unit length. Changes in direction closely approximate a sine function of channel distance. Depth, velocity, and slope are adjusted so as to decrease the variance of shear and the friction factor in a meander over that in an otherwise comparable straight reach of the same river.