Laws Of Flow In Rough Pipes
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| Author | : G. I. Barenblatt |
| Publisher | : Cambridge University Press |
| Total Pages | : 187 |
| Release | : 2003-11-13 |
| Genre | : Mathematics |
| ISBN | : 0521826578 |
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 | : D. I. H. Barr |
| Publisher | : Thomas Telford |
| Total Pages | : 372 |
| Release | : 1995 |
| Genre | : Science |
| ISBN | : 9780727720467 |
- Introduction - Review of Hydraulic Resistance - The basis of tables D and tables E - Arrangement and use of tables D and table E - Assessments for circular section tubes and pipes - Checks on mean velocity and reynolds number - Other sources of resistance - Non circular cross sections of flow - Review - References - Nomenclature - Tables within text - Figures within text - Appendix - Tables D - Tables E - Table F
| Author | : T. B. Nickels |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 183 |
| Release | : 2010-09-08 |
| Genre | : Technology & Engineering |
| ISBN | : 9048196310 |
The study of wall-bounded turbulent ows is of considerable interest from both scienti c and practical view points. As such it has attracted a great deal of research over the last 100 years. Much research has concentratedon ows over smooth walls since these are simpler from experimental, numerical and theoretical standpoints. The ow over rough walls has still received considerable attention but progress has necessarilybeenslower.Perhapsthemostessentialproblem(certainlyfromaprac- cal point of view) is to be able to predict the skin-frictiondrag acting on a plate (or a body) given a certain known roughness characteristic of the surface. Unfortunately this has proved to be very dif cult since even the simplest rough surfaces can be characterised by a number of different parameters and we still cannot directly c- nectthese tothe uiddynamicdragin a givensituation.Varioustheoriesandmodels have been proposed in order to make progress but there is still some disagreement in the community as to the correct understanding of these important ows.
| 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).
| Author | : D. I. H. Barr |
| Publisher | : Thomas Telford |
| Total Pages | : 356 |
| Release | : 1998 |
| Genre | : Technology & Engineering |
| ISBN | : 9780727726384 |
This new edition again includes the extended range of pipe size that covers European standards as well as those for the newer materials now widely adopted in the UK. The book's main objective is to aid Colebrook-White assessments of resistance in such pipes and in a great variety of free-surface circumstances including large rivers.
| Author | : D H Barr |
| Publisher | : Thomas Telford |
| Total Pages | : 348 |
| Release | : 2006 |
| Genre | : Technology & Engineering |
| ISBN | : 0727733567 |
Covering conduit and channel shapes by tables of properties based on unit size, this work also includes detailed coverage of the possible effects of variation in water temperature within the normal water resources, as well as considering the treatment of part-full flow in circular pipes.
| Author | : I. E. Idelchik |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 2005 |
| Genre | : Fluid dynamics |
| ISBN | : 9788179921180 |
The handbook has been composed on the basis of processing, systematization and classification of the results of a great number of investigations published at different time. The essential part of the book is the outcome of investigations carried out by the author. The present edition of this handbook should assist in increasing the quality and efficiency of the design and usage of indutrial power engineering and other constructions and also of the devices and apparatus through which liquids and gases move.
| Author | : Wolfgang Merzkirch |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 280 |
| Release | : 2005 |
| Genre | : Science |
| ISBN | : 9783540222422 |
Flow meters measure the volumetric flow rate in a pipeline. Most meters are based on deriving a signal from the fluid flow and calibrating the signal against the volumetric flow rate. The calibration is done in fully-developed flow, and the same state of flow must exist at the meter’s position when it is in practical use. Because the field of flow metering has been neglected by fluid mechanicists for a long time, this book addresses two major fluid mechanical problems in flow metering: the analysis of signal generation in turbulent pipe flow, which explains the function of the meter beyond a simple calibration, and the possible use of a meter in non-developed flows. These problems are investigated with reference to, and examples from, a variety of meters, e.g. ultrasound cross-correlation meters, vortex meters, and turbine meters. Studying these problems requires consideration of specific phenomena in turbulent non-developed pipe flow, as caused by installations, and finding special solutions with signal processing, both of which are included in the book.
| Author | : Michael Poreh |
| Publisher | : |
| Total Pages | : 48 |
| Release | : 1970 |
| Genre | : Pipe |
| ISBN | : |
A simplified model is developed to describe the effects of boundary roughness on drag reduction achieved by polymer additives. The model is suitable for both uniform and nonuniform roughness. Predictions of friction coefficients by means of the model are in reasonable agreement with experimental results. (Author).
| Author | : |
| Publisher | : |
| Total Pages | : 316 |
| Release | : 1984 |
| Genre | : Turbulent boundary layer |
| ISBN | : |
