A Study of Turbulent Flow in Rough Pipes

A Study of Turbulent Flow in Rough Pipes
Author: James Mueller Robertson
Publisher:
Total Pages: 144
Release: 1965
Genre: Fluid dynamics
ISBN:

The considerable literature on turbulent flow past rough surfaces is correlated in terms of modes of presenting the smooth-to-rough transition and the influences of roughness density and shape. Flow measurements in a 3 in. smooth and sand roughened pipe and in an 8 in. steel pipe with 'natural' roughness are reported. The temporal-mean velocity and friction measurements show transitional (between smooth and fully rough behavior) variations. The pipe factor variation is also elucidated; the sand-roughened pipe studies indicate a shift in Nikuradse's presentation. The turbulence - as intensity divided by shear velocity and macroscale in ratio to pipe radius - in rough pipe flow appears the same in rough as in smooth pipe flow. The relative turbulence intensity is constant, or at most decreases slowly with increase in flow Reynolds number. (Author).

Library of Congress Catalog

Library of Congress Catalog
Author: Library of Congress
Publisher:
Total Pages: 700
Release: 1965
Genre: Catalogs, Subject
ISBN:

A cumulative list of works represented by Library of Congress printed cards.

Subject Catalog

Subject Catalog
Author: Library of Congress
Publisher:
Total Pages: 684
Release: 1965
Genre: Catalogs, Subject
ISBN: