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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Sediment management and morphodynamics : Turbulent flow characteristics at the outlet of partially blocked box culverts
Turbulent flow characteristics at the outlet of partially blocked box culverts
Author : SAYANA SOROURIAN(1)
ABSTRACT
Blockage of culverts commonly occurs during the flood events. When a culvert is partially blocked at the inlet, the flow
structure in the barrel and at the outlet will change and consequently may result in the failure of culvert. The effect of
blockage on expanding the score hole geometry at the outlet was previously reported. The purpose of this paper is to
clarify the turbulent flow structure changes and conditions of a partially blocked culvert compare to a non-blocked culvert.
An experimental program was designed to measure the longitudinal, lateral and vertical velocity components through the
culvert barrel centreline and at the outlet. Tests were conducted in both non-blocked and partially blocked condition.
Based on that the turbulent flow characteristics such as turbulence intensity, turbulent kinetic energy and Reynolds shear
stress were obtained for each condition. Results showed that the turbulent flow characteristics in partially blocked
condition are significantly different in the barrel and at the outlet comparing to a non-blocked condition of the same
discharge.
File Size : 516,943 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Sediment management and morphodynamics
Date Published : 28/08/2015
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