September 2005
Intermediate to advanced
784 pages
21h 6m
English
book
Fluid Mechanics for Chemical Engineers with Microfluidics and CFD, Second Edition
by James O. Wilkes
Content preview from Fluid Mechanics for Chemical Engineers with Microfluidics and CFD, Second Edition
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Chapter 3. Fluid Friction in Pipes
3.1. Introduction
In chemical engineering process operations, fluids are typically conveyed through pipelines, in which viscous action—with or without accompanying turbulence—leads to “friction” and a dissipation of useful work into heat. Such friction is normally overcome either by means of the pressure generated by a pump or by the fluid falling under gravity from a higher to a lower elevation. In both instances, it is usually necessary to know what flow rate and velocity can be expected for a given driving force. This topic will now be discussed.
Fig. 3.1 shows a pipe fitted with pressure gauges that record the pressures p1 and p2 at the beginning and end of a test section of length L. A horizontal pipe ...
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