Laws of Flow in Rough Pipes PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Laws of Flow in Rough Pipes PDF full book. Access full book title Laws of Flow in Rough Pipes by J. Nikuradse. Download full books in PDF and EPUB format.
Author: J. Nikuradse
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 62
Get Book Here
Book Description
An experimental investigation is made of the turbulent flow of water in pipes with various degrees of relative roughness. The pipes range in size from 25 to 100 millimeters in diameter and from 1800 to 7050 millimeters in length. Flow velocities permitted Reynolds numbers from about 10 (sup. 4) to 10 (sup. 6). The laws of resistance and velocity distributions were obtained as a function of relative roughness and Reynolds number. Mixing length, as described by Prandtl's mixing-length formula, is discussed in relation to the experimental results.
Author: J. Nikuradse
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 62
Get Book Here
Book Description
An experimental investigation is made of the turbulent flow of water in pipes with various degrees of relative roughness. The pipes range in size from 25 to 100 millimeters in diameter and from 1800 to 7050 millimeters in length. Flow velocities permitted Reynolds numbers from about 10 (sup. 4) to 10 (sup. 6). The laws of resistance and velocity distributions were obtained as a function of relative roughness and Reynolds number. Mixing length, as described by Prandtl's mixing-length formula, is discussed in relation to the experimental results.
Author: James Mueller Robertson
Publisher:
ISBN:
Category : Fluid dynamics
Languages : en
Pages : 144
Get Book Here
Book Description
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).
Author: James Calvin May
Publisher:
ISBN:
Category :
Languages : en
Pages : 442
Get Book Here
Book Description
Author: Robert P. Benedict
Publisher: John Wiley & Sons
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 562
Get Book Here
Book Description
Author: Henry Madison Morris
Publisher:
ISBN:
Category : Hydraulics
Languages : en
Pages : 324
Get Book Here
Book Description
Author: Arthur Fage
Publisher:
ISBN:
Category : Frictional resistance (Hydrodynamics)
Languages : en
Pages : 26
Get Book Here
Book Description
Author: Norman Ketzlach
Publisher:
ISBN:
Category :
Languages : en
Pages : 58
Get Book Here
Book Description
Author: Sumaila Kessington Momoh
Publisher:
ISBN:
Category : Turbulent boundary layer
Languages : en
Pages : 60
Get Book Here
Book Description
Author: G. I. Barenblatt
Publisher: Cambridge University Press
ISBN: 0521826578
Category : Mathematics
Languages : en
Pages : 187
Get Book Here
Book Description
The author describes and teaches the art of discovering scaling laws, starting from dimensional analysis and physical similarity, which are here given a modern treatment. He demonstrates the concepts of intermediate asymptotics and the renormalisation group as natural consequences of self-similarity and shows how and when these notions and tools can be used to tackle the task at hand, and when they cannot. Based on courses taught to undergraduate and graduate students, the book can also be used for self-study by biologists, chemists, astronomers, engineers and geoscientists.
Author: Dean Alfred Kohlhase
Publisher:
ISBN:
Category : Hydraulics
Languages : en
Pages : 68
Get Book Here
Book Description
