Design recommendations: Intake structures

P. Rutschmann, P. Volkart, D. Vischer

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

2 Scopus citations


Vortices at intake structures produce various problems during operation of the intake. Apart from discharge losses, severe damage may occur to the construction and associated mechanical parts. Therefore, every design must prohibit swirling flow problems. There are several causes for vortex formation. These include eccentric orientation of the intake, asymmetric approach flow conditions, obstructions in the flow and non-uniform velocity distribution. Measures to prevent rotational flow must either reduce or eliminate these causes. As intake designs and approaching flow conditions vary from project to project, it is usually not possible to investigate the problem analytically. The use of a hydraulic model often proves to be advantageous in finding or improving an intake design.

Original languageEnglish
Title of host publicationSwirling Flow Problems at Intakes
PublisherCRC Press
Number of pages10
ISBN (Electronic)9781351412162
ISBN (Print)9061916437, 9789061916437
StatePublished - 1 Jan 2017
Externally publishedYes


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