Contributions to the Question of a Velocity Formula and Roughness Data for Streams, Channels and Closed Pipelines
Year: 1981
Type: article
Abstract: This widely referenced, but seldom seen report is of both historic \nand engineering interest. While much of the work presented has since \nbeen eclipsed by more recent work, the velocity equation for open \nchannels (Eq. 37) is still in use. It is interesting to learn how this \nequation came into being, particularly in light of the fact that it \npredates the well known von Karman-Prandtl logarithmic velocity distribution \nequation. Also of interest, is the plethora of velocity equations \nfor open channels and pipes, which existed over sixty years ago \n(particularly when one considers that the search for a satisfactory \nequation continues to this day). A final benefit of this translation is \nthat the extensive tabulations of data have been preserved for a new \nconstituency. \nEvery attempt has been made to translate as literally as possible, \nto preserve the flavor of the original report. Therefore, certain \nphrases may seem somewhat awkward. A few archaic German idioms required \na somewhat looser translation. The data in Tables 1 through 14 have \nbeen reproduced directly from the original report, with the substitution \nof captions in English. Therefore, the data entries contain commas \nwhich should be replaced by decimal points to convert to the North \nAmerican convention. \nThe preparation of this translation was supported by the National \nScience Foundation, under Grant CME 79-20311. Special thanks to Joan \nMathews and Melinda Hendrix-Werts for their excellent typing and to \nTheresa Fall, for preparation of the tables and figures.
Author: A. Strickler
Language: English
Subfield: Civil and Structural Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W140785981