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contributor authorMichael Pfister
contributor authorEsther Rühli
date accessioned2017-05-08T21:51:03Z
date available2017-05-08T21:51:03Z
date copyrightAugust 2011
date issued2011
identifier other%28asce%29hy%2E1943-7900%2E0000390.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/64208
description abstractA diversion tunnel is planned for flood protection in the City of Lyss, Switzerland. This tunnel includes a junction, from which water from a side creek is added to the tunnel flow. The latter is sensitive to choking, so that the junction had to be optimized in a hydraulic laboratory investigation. Its setup finally consists of a drop shaft and an injector generating annular flow in the tunnel. Free surface tunnel flow then occurred for all relevant discharges. This setup is also of interest in sewer systems as well as in spillway and diversion tunnels, where similar problems may occur. The concept was optimized for a specific prototype. General recommendations may be derived for similar situations.
publisherAmerican Society of Civil Engineers
titleJunction Flow between Drop Shaft and Diversion Tunnel in Lyss, Switzerland
typeJournal Paper
journal volume137
journal issue8
journal titleJournal of Hydraulic Engineering
identifier doi10.1061/(ASCE)HY.1943-7900.0000365
treeJournal of Hydraulic Engineering:;2011:;Volume ( 137 ):;issue: 008
contenttypeFulltext


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