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Title: An investigation into the resistance to the flow of water in large diameter pipelines
Category: Pipeline Industries Guild technical library
Downloadable: Yes 
Catalog No.: PIG0170
Date of Publication: September 1, 1987
Price: $25.00 US
Authors: A G Reale
Abstract: This paper is dived into four chapters/

Chapter 1 of the report considers the development of the theory of roughness from Nikuradses equivalent roughness principle to the concept of relative-roughness and their subsequent incorporation into the Colebrook-White universal pipe-flow equation.

Chapter 2 presents the current design techniques for quantifying the form losses in conduits and discusses in particular the necessity to quantify as accurately as possible these losses.

Chapter 3 presents some in situ test records taken on Large Diameter conduits in Ireland. The measured flowrates and their associated pressure-head losses are tabulated and the flow regime quantified in terms of the Reynolds Number, Darcy friction factor and the associated equivalent roughness value evaluated using the Colebrook-White equation.

Chapter 4 discusses briefly the major factors to be considered by design engineers in the energy management of pipeline installations. Gravity and Pumping systems are reviewed.

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