Experimental and Numerical Investigation of the Effect of Transition Length on Energy Losses in Gradual Transitions Open Channels Under Subcritical Flow

Autor:	Adel Asnaashari, Ali Akbar Akhtari, Amir Ahmad Dehghani, Hossain Bonakdari
Jazyk:	perština
Rok vydání:	2018
Předmět:	expansive gradual transition flow pattern energy losses flow separation zones bed shear stress Hydraulic engineering TC1-978 Irrigation engineering. Reclamation of wasteland. Drainage TC801-978
Zdroj:	علوم و مهندسی آبیاری, Vol 41, Iss 2, Pp 45-59 (2018)
Druh dokumentu:	article
ISSN:	2588-5952 2588-5960
DOI:	10.22055/jise.2018.13456
Popis:	'Transition' is a short hydraulic structure used to change the cross-sectional shape or flow shape. Transitions are commonly used both in the open-channels and natural waterways. The task of a transition is to connect a narrow channel at the upstream to a wider downstream channel or vice-versa. This, creates a disturbance region of turbulent flow causing energy losses. In general, the structure of a transition prevents the formation of wave and other turbulencies. In this case, the energy loss, due to the change in the amount of the momentum, will be minimized.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/6f3a117856b94389b67fdd18aa68c1e6 Zobrazit plný text záznamu View record in DOAJ