Research Article
Dec 1978
Selective Withdrawal from Two-Layer Fluid
Publication: Journal of the Hydraulics Division
Volume 104, Issue 12
Abstract
The discharge from a stably stratified reservoir is set by a valve, but the quality of the water and the flow pattern near the valve is determined by the interaction of the stratification and the geometry of the reservoir. In a two-layered system this control is at a single section. In previous work in this area the gradually varied flow assumption was made. In this paper it is shown that an alternative assumption, i.e., at the critical section (the virtual control) the velocity field in each layer is radial, with velocities in each layer that are only functions of the radial distance, yields a simple theory. This theory gives, for a particular discharge and given upstream conditions, the ratio of the discharge from each layer. It is applicable to the practical cases where the flow is not gradually varied. Experimental results are presented which support the theory.
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Published In
Journal of the Hydraulics Division
Volume 104 • Issue 12 • December 1978
Pages: 1647 - 1659
Copyright
© 1978 American Society of Civil Engineers.
History
Published in print: Dec 1978
Published online: Feb 3, 2021
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Authors
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Ian R. Wood, M.ASCE
Prof. of Civ. Engrg., Univ. of Canterbury, Christchurch, New Zealand
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.